Effect of sex and age on the association between suicidal behaviour and obesity in Korean adults: a cross-sectional nationwide study

Kim, Dae-Kwon; Song, Hyun Jin; Lee, Eui-Kyung; Kwon, Jin-Won

doi:10.1136/bmjopen-2015-010183

Cited by 10 publications

(7 citation statements)

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“…Gao (2013) reported that the association between BMI and suicidality varied by gender and depression status, with an inverse relationship between BMI and suicide attempts among men regardless of depression history; and a curvilinear relationship among women, with higher incidence of attempts among low-BMI relative to normal weight women without history of depression, but a U-shared relationship among women with depression [ 19 ]. Kim et al (2016) also reported that the relationship between BMI and suicidality was curvilinear and varied by gender in a large sample of Korean middle-aged adults [ 37 ]. Results from studies of BMI and suicidality among adolescent or young adult samples have generally been smaller and results are mixed [ 25 , 38 , 39 ].…”

Section: Discussionmentioning

confidence: 99%

The relationship between body mass index, binge eating disorder and suicidality

2018

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BackgroundWhile restrictive and compensatory eating disorders (e.g. anorexia and bulimia) are associated with elevated risk of suicide, less is known about binge eating disorder (BED). There is suggestive evidence of a U-shaped relationship between body mass index (BMI) and completed suicide, but fewer studies on suicidal ideation or attempts. This study examined the association between BED, BMI, and suicidality, and assessed whether these relationships varied by gender.MethodsData come from the Collaborative Psychiatric Epidemiologic Surveys (N = 14,497). Binge episodes and BED were assessed using the Composite International Diagnostic Inventory (CIDI). BMI was calculated from self-reported height and weight. Suicidal ideation/attempts were assessed using the CIDI. Weighted logistic regression was used to assess the association between binging/BED, BMI and suicidality. Interaction terms were used to assess whether the relationship between BMI and suicidality was moderated by binging/BED, and whether the relationships between binging/BED and BMI differed by gender.ResultsOne-third of adults with BED had a history of suicidality, compared to 19% of those without. Both binging (OR: 1.95, 95% CI: 1.50–2.53) and BED (OR: 2.01, 95% CI: 1.41–2.86) were associated with suicidality in fully-adjusted models. BMI was associated with suicidality in a curvilinear manner, and this relationship was exacerbated by binging/BED (ORBinge eating x BMI: 1.04, 95% CI: 1.01–1.09, p < 0.05). The relationship between BMI and suicidality did not differ by gender (ORgender x BMI: 1.00, p < 0.770). However, the relationship between binge eating and suicidality was stronger for women relative to men (ORgender X binge: 1.87, p < 0.012).ConclusionsBinge eating, even below the threshold for BED, is associated with suicidality. BMI is associated with suicidality in a curvilinear manner, and the BMI-suicidality relationship is potentiated by binge eating/BED. Findings support the thoughtful integration of psychiatric care into weight loss programs for adults with a history of binging behavior.Electronic supplementary materialThe online version of this article (10.1186/s12888-018-1766-z) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

The relationship between body mass index, binge eating disorder and suicidality

2018

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“…Anthropometric information was collected by self-reported height and weight data. BMI was calculated therefrom, and participants were categorized according to criteria for Asians [35] or generally applied definitions for the Korean population [5, 36, 37] using BMI cut offs of <18.5 kg/m 2 (underweight), <23 kg/m 2 (normal), ≥23 kg/m 2 (overweight), and ≥25 kg/m 2 (obese).…”

Section: Methodsmentioning

confidence: 99%

Self-perceptions of body weight status according to age-groups among Korean women: A nationwide population-based survey

et al. 2019

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While numerous studies have investigated body image, including body weight perception, most of which have focused on adolescents or young women, few studies have attempted to evaluate body weight perceptions in adult women according to age groups. This study was conducted to investigate the accuracy of self-perceived weight and actual body mass index (BMI) values among adult Korean women according to age. We used data from the 2016 Korean Study of Women’s Health Related Issues, a population-based, nationwide, cross-sectional survey. BMI was calculated from self-reported weight and height. Participants were asked to describe their body image by choosing one of the following descriptions: very underweight, underweight, about right, overweight, or obese. The proportions of women aged 20–29, 30–39, 40–49, 50–59, 60–69, and 70–79 years who underestimated their body weight relative to their actual BMI category were 12.6%, 15.1%, 22.2%, 34.0%, 45.6%, and 50.7%, respectively; those who overestimated their body weight comprised 18.7%, 17.8%, 14.3%, 10.8%, and 7.4%. In all BMI categories, the proportion of those who overestimated their weight status increased as age decreased, while those who underestimated their weight status increased as age increased. After adjusting for possible covariates, age was strongly associated with both underestimation and overestimation. The odds ratio for underestimating one’s weight status among women aged 70–79 yeas was 2.96 (95% CI: 2.10–4.18), and that for overestimation was 0.52 (95% CI: 0.35–0.79), compared to women aged 20–29 years. Age is the most important factor associated with weight perceptions among Korean women, affecting both underestimation and overestimation of weight status.

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“…In another cross-sectional study using the Korea National Health and Nutrition Examination Survey, the obese population was classified and analyzed by sex and age. There were many suicide attempts in severely obese women but the suicide attempts were higher for men when underweight, suggesting the possibility of a variable relationship between obesity and suicide according to sex and age [21]. However, as the number of studies on the relationship between obesity and suicide targeting Koreans are scarce, there are expected limitations in investigating clear correlations to clarify which results to generalize and apply.…”

Section: Discussionmentioning

confidence: 99%

A Study on the Relationship among Obesity, Suicide Plans, and Suicide Attempts: The 2018 Korea National Health and Nutrition Examination Survey

et al. 2021

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Background: This study explores the correlation among obesity, suicide plans, and suicide attempts in adults over 19 years of age in South Korea. Methods: The study used data from adults who had participated in the 2018 Korea National Health and Nutrition Examination Survey. Obesity was defined as having a body mass index of ≥25 kg/m 2. To identify differences between the characteristics of those who had reported suicide plans and attempts, a complex sample chi-square test was conducted. To analyze the effect of obesity on suicide plans and attempts, a logistic regression analysis was performed. Results: There was no significant difference in the rate of suicide plans in one year between obese and non-obese groups; however, the rate of actual suicide attempts was significantly high in the obese group (p<0.050). After correcting for variables that were significantly different between the groups, obesity was found to have no significant effect on suicide plans but was linked to a significant increase in suicide attempts (odds ratio=3.355, p=0.008). Conclusion: Obesity was found to have no effect on the suicide planning rate; however, the probability of a suicide attempt was high in obese adults.

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Effect of sex and age on the association between suicidal behaviour and obesity in Korean adults: a cross-sectional nationwide study

Cited by 10 publications

References 50 publications

The relationship between body mass index, binge eating disorder and suicidality

The relationship between body mass index, binge eating disorder and suicidality

Self-perceptions of body weight status according to age-groups among Korean women: A nationwide population-based survey

A Study on the Relationship among Obesity, Suicide Plans, and Suicide Attempts: The 2018 Korea National Health and Nutrition Examination Survey

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