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Division of Nutritional Sciences, Cornell University, Ithaca, NY
3To whom correspondence should be addressed. E-mail: kalaimo{at}umich.edu.
| ABSTRACT |
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KEY WORDS: depression suicide adolescents hunger food insufficiency
| INTRODUCTION |
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Although there has been extensive documentation of the damaging effects of growing up poor in America, there has been relatively little research on the psychological consequences of resource-constrained food deprivation (6
). Two studies from the Community Childhood Hunger Identification Project found that children identified as hungry and/or at risk of hunger were more likely to have behavioral problems and impaired psychosocial function, including symptoms of depression (7
,8
). In addition, research using the Third National Health and Nutrition Examination Survey (NHANES III)4
showed that food-insufficient children and teen-agers were more likely to have seen a psychologist and had more problems getting along with other children (9
). A fourth study demonstrated that compared with food-sufficient children, food-insufficient children had poorer health status and had more frequent stomach aches, headaches and colds (10
).
The objectives of this paper are as follows: 1) to report the national lifetime prevalences of Diagnostic and Statistical Manual of Mental Disorders (DSM-III) major depression, DSM-III dysthymia and symptoms of suicide in 15- to 16-y-old American adolescents by sociodemographic characteristics, including family food insufficiency, and 2) to report associations among depression, dysthymia and symptoms of suicide and sociodemographic characteristics, including family food insufficiency. We postulated that family characteristics are associated with depressive syndromes and suicidal symptoms in this national sample of adolescents. Furthermore, we postulated that family food insufficiency is independently associated with these disorders and symptoms after adjusting for other sociodemographic characteristics.
A finding that family food insufficiency and depression and suicide are associated would be significant because the 12-mo prevalence of affective disorders is highest among 15- to 24-y olds (11
) and suicide is the third leading cause of death for this same age group at 11.4 deaths per 100,000 (12
). Discovering possible causes of these disorders that are amenable to policy and program interventions, such as food insufficiency, offers public policy makers and professionals an important role in the reduction of adolescent morbidity and mortality.
| SUBJECTS AND METHODS |
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NHANES III included medical examinations and interviews conducted with survey participants and proxies. All interviews were administered using standard protocols by trained interviewers (13
). Ethical considerations were taken into account by the National Center for Health Statistics when the data were collected and survey participants cannot be identified in the data. For this analysis, data were used from the Household Family Questionnaires (proxy interviews) conducted in the home, and the DIS Questionnaire conducted in the Mobile Examination Centers.
Sociodemographic characteristics.
For each adolescent in the survey, information about sex, age, race-ethnicity, metropolitan or nonmetropolitan region of residence, family income, and employment status and education of the family head were provided by a responsible adult living in the home. The "family head" was a person who owned or rented the home in which the adolescent lived.
Total family income for the previous 12 mo was reported for categories ranging from "less than $1000" to "$80,000 and over," in $1000 increments below $19,999, in $5000 increments between $20,000 and $49,999, and in $10,000 increments between $50,000 and $79,999. A poverty index ratio (PIR) was then calculated by comparing the mid-point of the category and the adolescents family size to the Federal poverty line (14
). These analyses used the following three poverty status categories: low income (defined as PIR
130% of the poverty line, which is the federal cut-off point for eligibility for the Food Stamp Program); middle income (>130 to 300% of the poverty line); and high income (>300% of the poverty line).
Information on race and ethnicity of the adolescent was used to classify adolescents into the following race-ethnic categories: 1) non-Hispanic White adolescents, and "other" adolescents, 2) non-Hispanic Black-American adolescents, and 3) Mexican American adolescents. Twenty-seven Mexican American and five "other" adolescents were administered the DIS questionnaire in Spanish, which was too small a number to be able to statistically control for language of interview in our analyses. Analyses run with and without these adolescents did not change the results; therefore, these Spanish-speaking adolescents were kept in the analyses. In addition, 27 teenage girls reported having had at least one full-term birth. Again, analyses run with and without these girls did not change the results and they were kept in the analyses.
Food insufficiency.
For the purpose of NHANES III, food insufficiency was defined as "an inadequate amount of food intake due to a lack of resources." A child was classified as "food insufficient" if the respondent to the family questionnaire reported that the family either "sometimes" or "often" did not have enough food to eat. Cognitive testing has determined that this question is valid (15
20
) and that respondents interpret the time frame associated with it from "just generally" to "within the past year" (16
). The question has also been shown to be associated with food expenditure and nutrient intake (21
23
).
Depression, dysthymia and symptoms of suicide.
Lifetime history of major depressive disorder (MDD), dysthymia and symptoms of suicide were assessed using the DIS developed for the National Institute of Mental Healths Epidemiologic Catchment Area program (24
). The DIS includes a series of questions that asked about the adolescents lifetime history of depressive symptoms. MDD was diagnosed if the adolescent had a low mood or sadness for 2 wk or more with four concurrent symptom groups, this sadness was not due to medication or a medical condition, was not due to bereavement, and the episode was severe enough to cause help-seeking or subjective impairment. The symptom groups included the following: subjective weight loss or weight gain, insomnia or hypersomnia, psychomotor agitation or retardation, fatigue, feelings of worthlessness or guilt, diminished ability to think or concentrate and suicidal symptoms (25
).
Dysthymia was diagnosed if the adolescent reported a low mood for
2 y and reported at least two symptoms of the six symptom groups listed in the DSM-IV including the following: poor appetite or overeating, insomnia or hypersomnia, low energy or fatigue, low self-esteem, poor concentration or feelings of hopelessness (approximated by suicidal symptoms). There are two variations between the diagnosis used in this study and the DSM-IV criteria for dysthymia: first, the DSM-IV criteria include low mood for only 1 y or longer, but a 2-y criterion was assessed for these adolescents; second, the DSM-IV criteria require that the two other symptoms be concurrent with the low mood, but this timing was not assessed during NHANES III (25
).
Four symptoms of suicide were assessed during the DIS and included a question asking whether there had been a period of 2 wk or longer when the adolescent: "thought a lot about deatheither your own, someone elses or death in general" or "felt like you wanted to die." In addition, adolescents were asked if they "ever felt so low you thought of committing suicide" or if they had "ever attempted suicide."
Changes in appetite and weight often accompany depression. Therefore, we also studied the three appetite questions asked as part of the DIS, i.e, whether there ever was a "period of two weeks or longer when you lost your appetite"; "have you ever lost weight without tryingas much as two pounds (0.9 kg) a week for several weeks [or as much as 10 pounds (4.5 kg) all together]" or was there a period in which "your eating increased so much that you gained as much as two pounds (0.9 kg) a week for several weeks [or 10 pounds (4.5 kg) all together]."
Statistical methods.
Sample weights were created for the NHANES III data to take into account the oversampling of certain groups, such as Black and Mexican-Americans, as well as nonresponse. For these analyses, NHANES III weighted data were analyzed using the svy commands available in STATA Statistical Software (26
). These commands use the weights and survey cluster design to calculate accurate point estimates and variances. Investigation of outliers and influential data points revealed that unusual adolescents with high sample weights had strong influence on the analyses, which reduced the accuracy of our estimates. To compensate for this problem, we transformed the sample weights using the square root of the sample weight. This kept the integrity of the relationship among adolescents to the total population while diminishing the influence of a few of the individuals.
Pearson
2 tests (two-tailed) were used to determine significant (P < 0.5) differences of depressive disorders and symptoms of suicide by age, gender and metropolitan region. Logistic regression models were created to test for significant differences among race-ethnicities, family income, family head education, employment and marital status after adjusting for age, gender and metropolitan region.
Logistic regression models were also created to test the hypothesis that food insufficiency is associated with major depression, dysthymia and symptoms of suicide, independent of potential confounders including all other sociodemographic variables described above. Interactions were not assessed because of the limited sample size and low prevalence of food insufficiency and depressive disorders. Population attributable risks for food insufficiency were calculated using the odds ratios (OR) from the logistic regression models as estimates of relative risks (27
).
For prevalence estimates and means, missing data were excluded from the analyses. For the logistic regression analyses testing differences by food sufficiency status, all missing data except for food insufficiency status and the outcomes were imputed using the impute command in STATA, which uses regression equations to fill in missing values based on other nonmissing data in the adolescents record. Variables included in these regression equations were chosen separately for each imputed variable using backward step-wise regression to screen for associated variables. For dichotomous variables, impute was used to predict a probability, and a random value was selected based upon this probability. The number of missing values imputed ranged from 0 children missing data for whether the child had a regular source of health care to 70 (9.3%) adolescents missing data for their familys PIR. A total of 105 teenagers had at least one missing value. None of the teenagers were missing data for the food insufficiency question.
| RESULTS |
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There were few significant differences among the race-ethnic groups after adjusting for age, gender and metropolitan region. Non-Hispanic Black adolescents were significantly less likely than non-Hispanic White adolescents to have had major depression and to report suicidal ideation. Mexican-American adolescents were significantly more likely to have attempted suicide than non-Hispanic White and non-Hispanic Black adolescents.
Trends in the prevalence of depressive disorders and suicidal symptoms varied by family income; the only significant difference was that low income adolescents were less likely to report suicide ideation than high income adolescents. In addition, adolescents who lived in families whose head had not completed high school or who only had a high school degree were significantly more likely to have had a desire to die than those who lived in a family whose head had more education than a high school degree.
Family head employment status was strongly associated with dysthymia, any depressive disorder and suicide attempt. Adolescents living in families in which the family head was unemployed were about twice as likely to have had dysthymia, any depressive disorder and to have attempted suicide. The only significant difference between adolescents who lived in families with single vs. married parents was for dysthymia; adolescents who lived in single-parent families were more than twice as likely to report dysthymia.
Except for gender, the results for food insufficiency were the most striking of all the characteristics studied. From the regression analyses testing for statistical significance, food-insufficient adolescents were significantly more likely to have had dysthymia and to report three of the four symptoms of suicide (Table 3)
. Remarkably, food-insufficient adolescents were 4.0 [95% confidence interval (CI), 1.610.0] times more likely to have had dysthymia, 2.0 (95% CI, 1.23.3) times more likely to have had thoughts of death, 3.4 (95% CI, 1.57.5) times more likely to have had a desire to die and 5.0 (95% CI, 1.714.6) times more likely to have attempted suicide.
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Food insufficiency was frequent among adolescents with depressive disorders or who had attempted suicide. Notably, 13% (SE: 6.1) of adolescents who ever had MDD, 24% (SE: 7.4) of those with dysthymia, and 26% (SEM 8.0) of those who had attempted suicide lived in food-insufficient families, compared with 6.6% (SE: 1.6) overall (data not shown).
Attributable risk calculations ranged from 5 to 21% for the outcomes, with 17% (95% CI, 2.146.7%) of dysthymia and 21% (95% CI, 2.356.8%) of suicide attempts "attributable" to food insufficiency (data not shown).
| DISCUSSION |
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Further indication that food deprivation causes depressed mood comes from research on the psychological consequences of dieting. In her review, Polivy (29
) concluded that chronic dieters or people who restrict their eating tend to have heightened emotional responsiveness and increased irritability and distraction. Overall assessments of weight loss programs or of weight fluctuations have been mixed, however, possibly due to assessment method (30
,31
). Many weight loss treatments have shown decreases in negative mood from pre- to poststudy as assessed by standardized questionnaires or checklists; these changes are likely due to the feeling of success that comes with losing weight (30
,32
). Clinical assessments of subjects during the weight loss period, on the other hand, have found transient increases in negative affect, in some cases causing clinically significant levels of depression (30
,33
,34
).
Most of these dieting studies excluded depressed subjects, although some case studies of formerly depressed women indicate that dieting is associated with recurrence of depressive episodes in recovered patients (30
,31
). It is possible that food deprivation is a maintaining factor in depression and increases the duration of the disorder. This may explain why food insufficiency was significantly associated with dysthymia, which has a longer duration, and not with MDD.
Explanations other than the biological effects of food deprivation are also possible. Stressful life events and chronic stress have both been associated with adolescent depression, and absence of food could be seen as either a stressful event or a chronic stress if the food problem is prolonged (35
,36
). It may also be the case that the parent(s) of the adolescent are suffering from food deprivation, which could, in turn, affect their own emotional state and parenting behaviors. Families characterized by chronic stress, chaotic interactions, low levels of nurturance and inconsistent discipline are associated with depression in adolescence (25
,37
40
).
Depressive disorders were more common in girls. Compared with non-Hispanic White and Black adolescents, Mexican-American adolescents reported significantly higher rates of suicide attempt and had the largest prevalence of depressive disorders. Interestingly, low family income was not positively associated with depressive disorders or suicidal symptoms. High income adolescents reported more suicide ideation, but there were no other differences by family income.
Previous studies fairly consistently showed these same gender differences (39
41
), although they are inconsistent on other characteristics. In a large survey of public-school adolescents in New York, Kandel and Davies (41
) found no differences in prevalence of depressed mood by race-ethnicity, family income or fathers education, although the prevalence was slightly higher for the lowest income group (<$3000/y). However, Schoenbach et al. (42
) found more depressive symptoms in African-American and poor 12- to 15-y olds in North Carolina, and Kaplan et al. (43
) found that lower social class adolescents were more depressed than higher social class adolescents. Roberts et al. (44
) showed that African-American and Mexican-American adolescents had higher rates of depression than Caucasian adolescents. Increased depression and suicidal symptoms in Mexican-American adolescents may reflect cultural acceptance of these symptoms for expressing distress (45
).
The finding that female gender was strongly associated with symptoms of suicide and history of attempted suicide may appear inconsistent with data showing that males are more likely than females to commit suicide (12
). However, although males are four times more likely to die from suicide than are females, females are more likely to report attempting suicide than are males (46
). This may be due to method choice and completion rates; males tend to choose methods such as firearms for which the likelihood of succeeding is much greater (46
). For this retrospective study, it is likely that many of the would-be sample of male adolescents who attempted suicide sadly succeeded, and hence could not participate in the study.
Overall lifetime prevalence estimates found in this study of MDD and dysthymia are somewhat lower than other studies. Prevalence estimates of MDD in adolescents from community samples range from 0.4 to 2.9%, but lifetime prevalence of MDD has been estimated to be between 15 and 20% (11
,39
,40
). To our knowledge, this is the first national survey in which prevalence estimates for depressive disorders have been made available specifically for adolescents. It is unclear whether the prevalence estimates found in the community samples are an overestimate or if in this survey, adolescents underreported their symptoms. Differences also may be due to a broader age range in the community studies.
Point prevalences of dysthymia has been found to be 1.68.0% (40
), similar to the lifetime prevalence estimate reported here; however, this estimate has the potential to be either an underreport or an overreport due to the 2-y criterion of low mood used instead of the 1-y criterion listed in the DSM-IV, and because the other criteria symptoms did not have to be concurrent. According to the literature,
7076% of adolescents with dysthymia will eventually develop MDD (40
,47
). In fact, 41% (SEM 7.8) of the dysthymic adolescents in this study already had both syndromes, or "double depression" (data not shown).
The prevalence of suicidal symptoms reported here ranged from 5 to 30% with 39% of adolescents reporting at least one suicidal symptom. The prevalence found in this study of suicide attempt (5%) is consistent with other community samples, which have found lifetime prevalence rates between 3.0 and 7.1% (40
).
An important limitation in these analyses resides in the timing between our main explanatory variable, food insufficiency, and our outcome variables. We found an association between current family food insufficiency and lifetime prevalence of depressive disorders and symptoms of suicide. This means that we have found an association between a current state with a past and potentially on-going state. Recognizing this, we believe that these analyses are worthwhile for several reasons.
First, at any point in time, most persons who are poor will experience long stays in poverty; Bane and Ellwood (48
) found that 75% of poor families were poor for the 4 y before the measurement time. Although similar research on the duration of spells of food insufficiency has not yet been conducted, we suspect that findings will be similar. In addition, >91% of adolescents with MDD reported that their worst depressive spell was within the past year (data not shown). Dysthymia, however, is associated with earlier onset than MDD. Not all dysthymic adolescents and those who had attempted suicide in this study were asked about their worst period because of skip patterns in the questionnaire but, of those who were asked, 8892% stated that their worst spell was within the past year. According to Kovacs, mean duration of dysthymia is 4 y, which means that most ever dysthymic adolescents identified in this study are likely to be currently dysthymic (47
).
These pieces of information led us to believe that the experiences of food insufficiency and symptoms of depression and suicide were fairly concurrent. Thus, we propose that the results of this study indicate that food insufficiency is associated with adolescent dysthymia and symptoms of suicide.
A second limitation of the present study is the absence of many potentially confounding variables known to be associated with depressive disorders that are missing from the NHANES III data, including history of abuse or neglect, parental and peer social support, parental psychological disorder, neighborhood characteristics and other life stresses (35
37
,39
41
,49
51
). In addition, alcohol, cigarette and illegal drug use have also been associated with depressive disorders. Although use of these substances was assessed in NHANES III, the number of adolescents who actually reported use was so low (data not shown) as to be unbelievable compared with other estimates [see for example, (52
)], and we decided not to use this information. It is likely that adolescents were unwilling to reveal substance use in this government survey. Finally, this study excluded homeless adolescents. Given that homeless people are more likely to be mentally ill and to be food insufficient, excluding them likely underestimates the prevalence of both and the association between them.
Research is required to assess whether the finding that family food insufficiency is associated with dysthymia and symptoms of depression is because of biological reactions to reduced food intake, reactions to food insufficiency as a stressor, or other unmeasured confounding factors such as chaotic parenting or child abuse and neglect. Nevertheless, this research demonstrates that a large percentage of dysthymic and suicidal adolescents are living in families that do not have enough food to eat. Unlike many factors that contribute to adolescent psychopathology such as child abuse or peer social support, food insufficiency is amenable to public policy programs such as increasing the minimum wage, expanding the Earned Income Tax Credit, increasing support for the Food Stamp Program and/or expanding the School Lunch, Breakfast, and Summer Food Service Programs. If food insufficiency is a causal factor in dysthymia and suicidal behaviors, then public policies aimed at promoting food security could potentially prevent a substantial percentage of adolescent psychological morbidity and mortality.
| ACKNOWLEDGMENTS |
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| FOOTNOTES |
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2 Present affiliation: University of Michigan School of Public Health. ![]()
4 Abbreviations used: CI, confidence interval; DIS, Diagnostic Interview Schedule; DSM, Diagnostic and Statistical Manual of Mental Disorders; MDD, Major Depressive Disorder; NHANES III, Third National Health and Nutrition Examination Survey; OR, odds ratio; PIR, poverty index ratio. ![]()
Manuscript received 10 August 2001. Initial review completed 16 October 2001. Revision accepted 7 January 2002.
| LITERATURE CITED |
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1. Kenworthy, L. (1998) Do Social-Welfare Policies Reduce Poverty? A Cross-National Perspective. Working Paper no. 188, Luxembourg Income Study, Maxwell School for Citizenship and Public Affairs 1998 Syracuse University Syracuse, NY. .
2. Rainwater, L. & Smeeding, T. (1995) Doing Poorly: the Real Income of American Children in Comparative Perspective. Working Paper no. 127, Luxembourg Income Study, Maxwell School for Citizenship and Public Affairs 1995 Syracuse University Syracuse, NY. .
3. U.S. Bureau of the Census (1999) Poverty in the United States: 1998, Series P60201 1999 U.S. Government Printing Office Washington, DC. .
4. Edin, K. & Lein, L. (1997) Making Ends Meet: How Single Mothers Survive Welfare and Low-Wage Work 1997 Russell Sage Foundation New York, NY. .
5. Bickel, G., Carlson, S. & Nord, M. (1999) Household Food Security in the United States: 19951998 (Advance Report) 1999 Food and Nutrition Service, U.S. Department of Agriculture Washington, DC. .
6. Duncan, J. & Brooks-Gunn, J. (1997) Consequences of Growing Up Poor 1997 Russell Sage Foundation New York, NY. .
7.
Kleinman, R. E., Murphy, M., Little, M., Pagano, M., Wehler, C. A., Regal, K. & Jellinek, M. S. (1998) Hunger in children in the United States: potential behavioral and emotional correlates. Pediatrics 101:1-6.
8. Murphy, J., Wehler, C., Pagano, M., Little, M., Kleinman, R. & Jellinek, M. (1998) Relationship between hunger and psychosocial functioning in low-income American children. J. Am. Acad. Child. Adolesc. Psychiatry 37:163-170.[Medline]
9.
Alaimo, K., Olson, C. & Frongillo, E. A., Jr (2001) Food insufficiency and American school-aged childrens cognitive, academic, and psycho-social development. Pediatrics 108:44-53.
10. Alaimo, K., Olson, C., Frongillo, E. & Briefel, R. (2001) Food insufficiency, family income and health in U.S. preschool and school-age children. Am. J. Public Health 91:781-786.[Abstract]
11. Kessler, R. C., McGonagle, K. A., Zhao, S., Nelson, C. B., Hughes, M., Eshleman, S., Wittchen, H. U. & Kendler, K. S. (1994) Lifetime and 12-month prevalence of DSM-III-R psychiatric disorders in the United States. Results from the National Comorbidity Survey. Arch. Gen. Psychiatry 51:8-19.[Abstract]
12. Hoyert, D., Kochanek, K. & Murphy, S. (1999) Deaths: Final Data for 1997 1999 National Center for Health Statistics Hyattsville, MD. .
13. National Center for Health Statistics (1994) Plan and operation of the third National Health and Nutrition Examination Survey:198894 1994 Vital Health Stat. 1. NCHS Hyattsville, MD. .
14. U.S. Department of Health and Human Services (1995) Poverty income guidelines; annual revision. Federal Register 60:7772-7774.[Medline]
15. Briefel, R. & Woteki, C. (1992) Development of the food sufficiency questions for the third National Health and Nutrition Examination Survey. J Nutr. Educ. 24:24S-28S.
16. Alaimo, K. (1997) Food Insecurity, Hunger, and Food Insufficiency in the United States: Cognitive Testing of Questionnaire Items and Prevalence Estimates from the Third National Health and Nutrition Examination Survey 1997 Cornell University Ithaca, NY. .
17.
Alaimo, K., Briefel, R., Frongillo, E. A., Jr & Olson, C. (1998) Food insufficiency exists in the United States: results from the Third National Health and Nutrition Examination Survey (NHANES III). Am. J. Public Health 88:419-426.
18. Alaimo, K., Olson, C. & Frongillo, E. (1999) Importance of cognitive testing for survey items: an example from food security questionnaires. J. Nutr. Educ. 31:269-275.
19. Carlson, S & Briefel, R. (1995) The USDA and NHANES food sufficiency question as an indicator of hunger and food insecurity. Conference on Food Security Measurement and Research: Papers and Proceedings 1995 USDA, Food and Consumer Services Alexandria, VA. .
20. Findlay, J., Greene, B., Petty-Martin, C., Ostchega, A. & Pinder, G. (1994) NHANES III Interviewer Debriefing, October 1920, 1994 1994 National Center for Health Statistics Bethesda, MD. .
21. Christofar, S. & Basiotis, P. (1992) Dietary intakes and selected characteristics of women ages 1950 years and their children ages 15 years by reported perception of food sufficiency. J. Nutr. Educ. 24:53-58.
22. Basiotis, P. (1992) Validity of the self-reported food sufficiency status item in the U.S. Department of Agriculture Food Consumption Surveys. Proceedings, 1992 Annual Meeting of the American Council in the Consumer Interest, March 2528..
23.
Rose, D. & Oliveira, V. (1997) Nutrient intakes of individuals from food-insufficient households in the United States. Am. J. Public Health 87:1956-1961.
24. National Center for Health Statistics (1996) NHANES III Examination Data File Documentation 1996 NCHS Hyattsville, MD. .
25. American Psychiatric Association (1997) Diagnostic and Statistical Manual of Mental Disorders: DSM-IV 1997 American Psychiatric Association Washington, DC. .
26. Stata Corporation (1997) Stata Statistical Software: Release 5.0 1997 Stata Corporation College Station, TX. .
27. Gordis, L. (1996) Epidemiology 1996 W. B. Saunders Philadelphia, PA. .
28. Keys, A, et al (1950) The Biology of Human Starvation Vols. I and II University of Minneapolis Press Minneapolis, MN. .
29. Polivy, J. (1996) Psychological consequences of food restriction. J. Am. Diet. Assoc. 96:589-592.[Medline]
30. Smoller, J. W., Wadden, T. A. & Stunkard, A. J. (1987) Dieting and depression: a critical review. J. Psychosom. Res. 31:429-440.[Medline]
31.
Wilson, G. T. (1993) Relation of dieting and voluntary weight loss to psychological functioning and binge eating. Ann. Intern. Med. 119:727-730.
32. Heller, J. & Edelmann, R. J. (1991) Compliance with a low calorie diet for two weeks and concurrent and subsequent mood changes. Appetite 17:23-28.[Medline]
33. Wadden, T. A., Stunkard, A. J. & Smoller, J. W. (1986) Dieting and depression: a methodological study. J. Consult. Clin. Psychol. 54:869-871.[Medline]
34.
Wilson, D. M., Hammer, L. D., Duncan, P. M., Dornbusch, S. M., Ritter, P. L., Hintz, R. L., Gross, R. T. & Rosenfeld, R. G. (1986) Growth and intellectual development. Pediatrics 78:646-650.
35. Williamson, D. E., Birmaher, B., Anderson, B. P., al-Shabbout, M. & Ryan, N. D. (1995) Stressful life events in depressed adolescents: the role of dependent events during the depressive episode. J. Am. Acad. Child. Adolesc. Psychiatry 34:591-598.[Medline]
36. Lempers, J. D., Clark-Lempers, D. & Simons, R. L. (1989) Economic hardship, parenting, and distress in adolescence. Child Dev. 60:25-39.[Medline]
37. Fergusson, D. M., Horwood, L. J. & Lynskey, M. T. (1995) Maternal depressive symptoms and depressive symptoms in adolescents. J. Child Psychol. Psychiatry 36:1161-1178.[Medline]
38. Klein, D. N., Taylor, E. B., Dickstein, S. & Harding, K. (1988) Primary early-onset dysthymia: comparison with primary nonbipolar nonchronic major depression on demographic, clinical, familial, personality, and socioenvironmental characteristics and short-term outcome. J. Abnorm. Psychol. 97:387-398.[Medline]
39. Lewinsohn, P. M., Rohde, P. & Seeley, J. R. (1998) Major depressive disorder in older adolescents: prevalence, risk factors, and clinical implications. Clin. Psychol. Rev. 18:765-794.[Medline]
40. Birmaher, B., Ryan, N. D., Williamson, D. E., Brent, D. A., Kaufman, J., Dahl, R. E., Perel, J. & Nelson, B. (1996) Childhood and adolescent depression: a review of the past 10 years. Part I. J. Am. Acad. Child. Adolesc. Psychiatry 35:1427-1439.[Medline]
41. Kandel, D. B. & Davies, M. (1982) Epidemiology of depressive mood in adolescents: an empirical study. Arch. Gen. Psychiatry 39:1205-1212.[Abstract]
42.
Schoenbach, V. J., Kaplan, B. H., Grimson, R. C. & Wagner, E. H. (1982) Use of a symptom scale to study the prevalence of a depressive syndrome in young adolescents. Am. J. Epidemiol. 116:791-800.
43. Kaplan, S. L., Hong, G. K. & Weinhold, C. (1984) Epidemiology of depressive symptomatology in adolescents. J. Am. Acad. Child. Adolesc. Psychiatry 23:91-98.
44. Roberts, R. E., Roberts, C. R. & Chen, Y. R. (1997) Ethnocultural differences in prevalence of adolescent depression. Am. J. Community Psychol. 25:95-110.[Medline]
45. Allen, L., Denner, J., Yoshikawa, H., Seidman, E. & Aber, J. (1996) Acculturation and depression among Latina urban girls. Leadbeater, B. Way, N. eds. Urban Girls: Resisting Stereotypes, Creating Identities 1996 New York University Press New York. NY. .
46. Brent, D. A., Baugher, M., Bridge, J., Chen, T. & Chiappetta, L. (1999) Age- and sex-related risk factors for adolescent suicide. J. Am. Acad. Child. Adolesc. Psychiatry 38:1497-1505.[Medline]
47. Kovacs, M., Akiskal, H. S., Gatsonis, C. & Parrone, P. L. (1994) Childhood-onset dysthymic disorder. Clinical features and prospective naturalistic outcome. Arch. Gen. Psychiatry 51:365-374.[Abstract]
48. Bane, M. & Ellwood, D. (1986) Slipping into and out of poverty: The dynamics of spells. J. Hum. Resources 21:1-23.
49. Williamson, D. E., Birmaher, B., Frank, E., Anderson, B. P., Matty, M. K. & Kupfer, D. J. (1998) Nature of life events and difficulties in depressed adolescents. J. Am. Acad. Child. Adolesc. Psychiatry 37:1049-1057.[Medline]
50.
Goodyer, I. & Cooper, P. J. (1993) A community study of depression in adolescent girls. II: The clinical features of identified disorder. Br. J. Psychiatry 163:374-80.
51.
Angold, A. (1988) Childhood and adolescent depression. I. Epidemiological and aetiological aspects. Br. J. Psychiatry 152:601-17.
52. Johnston, L., OMalley, P. & Bachman, J. (1994) National Survey Results on Drug Use from the Monitoring the Future Study, 197593: Volume I: Secondary School Students 1994 National Institute on Drug Abuse Rockville, MD. .
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W. Gonzalez, A. Jimenez, G. Madrigal, L. M. Munoz, and E. A. Frongillo Development and Validation of Measure of Household Food Insecurity in Urban Costa Rica Confirms Proposed Generic Questionnaire J. Nutr., March 1, 2008; 138(3): 587 - 592. [Abstract] [Full Text] [PDF] |
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R. Rose-Jacobs, M. M. Black, P. H. Casey, J. T. Cook, D. B. Cutts, M. Chilton, T. Heeren, S. M. Levenson, A. F. Meyers, and D. A. Frank Household Food Insecurity: Associations With At-Risk Infant and Toddler Development Pediatrics, January 1, 2008; 121(1): 65 - 72. [Abstract] [Full Text] [PDF] |
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J. Bronte-Tinkew, M. Zaslow, R. Capps, A. Horowitz, and M. McNamara Food Insecurity Works through Depression, Parenting, and Infant Feeding to Influence Overweight and Health in Toddlers J. Nutr., September 1, 2007; 137(9): 2160 - 2165. [Abstract] [Full Text] [PDF] |
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N. Barber Evolutionary Explanations for Societal Differences and Historical Change in Violent Crime and Single Parenthood Cross-Cultural Research, May 1, 2007; 41(2): 123 - 148. [Abstract] [PDF] |
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K. Kim and E. A. Frongillo Participation in Food Assistance Programs Modifies the Relation of Food Insecurity with Weight and Depression in Elders J. Nutr., April 1, 2007; 137(4): 1005 - 1010. [Abstract] [Full Text] [PDF] |
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M. Nord and H. Hopwood Recent Advances Provide Improved Tools for Measuring Children's Food Security J. Nutr., March 1, 2007; 137(3): 533 - 536. [Abstract] [Full Text] [PDF] |
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R. Engler-Stringer and S. Berenbaum Exploring Food Security With Collective Kitchens Participants in Three Canadian Cities Qual Health Res, January 1, 2007; 17(1): 75 - 84. [Abstract] [PDF] |
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L. A. Simmons, S. C. Modesitt, A. C. Brody, and A. B. Leggin Food Insecurity Among Cancer Patients in Kentucky: A Pilot Study J. Oncol. Pract, November 1, 2006; 2(6): 274 - 279. [Abstract] [Full Text] [PDF] |
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P. H. Casey, P. M. Simpson, J. M. Gossett, M. L. Bogle, C. M. Champagne, C. Connell, D. Harsha, B. McCabe-Sellers, J. M. Robbins, J. E. Stuff, et al. The Association of Child and Household Food Insecurity With Childhood Overweight Status Pediatrics, November 1, 2006; 118(5): e1406 - e1413. [Abstract] [Full Text] [PDF] |
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D. Rose and J. N. Bodor Household Food Insecurity and Overweight Status in Young School Children: Results From the Early Childhood Longitudinal Study Pediatrics, February 1, 2006; 117(2): 464 - 473. [Abstract] [Full Text] [PDF] |
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D. F. Jyoti, E. A. Frongillo, and S. J. Jones Food Insecurity Affects School Children's Academic Performance, Weight Gain, and Social Skills J. Nutr., December 1, 2005; 135(12): 2831 - 2839. [Abstract] [Full Text] [PDF] |
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M. C. Ecevit and M. A. Kasapolu A Sociological Case Study on the Attitudes and Behavior of Students in Urban Turkey Urban Education, September 1, 2005; 40(5): 550 - 564. [Abstract] [PDF] |
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C. L. Connell, K. L. Lofton, K. Yadrick, and T. A. Rehner Children's Experiences of Food Insecurity Can Assist in Understanding Its Effect on Their Well-Being J. Nutr., July 1, 2005; 135(7): 1683 - 1690. [Abstract] [Full Text] [PDF] |
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P. H. Casey, K. L. Szeto, J. M. Robbins, J. E. Stuff, C. Connell, J. M. Gossett, and P. M. Simpson Child Health-Related Quality of Life and Household Food Security Arch Pediatr Adolesc Med, January 1, 2005; 159(1): 51 - 56. [Abstract] [Full Text] [PDF] |
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C. L. Connell, M. Nord, K. L. Lofton, and K. Yadrick Food Security of Older Children Can Be Assessed Using a Standardized Survey Instrument J. Nutr., October 1, 2004; 134(10): 2566 - 2572. [Abstract] [Full Text] [PDF] |
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R. E Mazur, G. S Marquis, and H. H Jensen Diet and food insufficiency among Hispanic youths: acculturation and socioeconomic factors in the third National Health and Nutrition Examination Survey Am. J. Clinical Nutrition, December 1, 2003; 78(6): 1120 - 1127. [Abstract] [Full Text] [PDF] |
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E. J. Adams, L. Grummer-Strawn, and G. Chavez Food Insecurity Is Associated with Increased Risk of Obesity in California Women J. Nutr., April 1, 2003; 133(4): 1070 - 1074. [Abstract] [Full Text] [PDF] |
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N. T. Vozoris and V. S. Tarasuk Household Food Insufficiency Is Associated with Poorer Health J. Nutr., January 1, 2003; 133(1): 120 - 126. [Abstract] [Full Text] [PDF] |
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