Increasing effect of body weight perception on suicidal ideation among young Korean women: Findings from the Korea National Health and Nutrition Examination Survey 2001 and 2005

Figures & data

Figure 1 Three hypotheses of the test for mediation effect of BWP on the association between BMI and suicidal ideation.

Abbreviations: BMI, body mass index; BWP, body weight perception.

Figure 2 Prevalence of BMI and BWP in 2001 and 2005 (A) and prevalence of BMI and BWP in 2005 in comparison with those in 2001 (B) among young Korean women aged 20–29 years.

Abbreviations: BMI, body mass index; BWP, body weight perception.

Table 1 Unadjusted odds ratios (ORs) and 95% confidential intervals (CIs) for the association between body mass index (BMI) and body weight perception (BWP) in 2001 and 2005

	2001 KNHANES				2005 KNHANES
	BWP				BWP
	Underweight compared to normal weight		Overweight compared to normal weight		Underweight compared to normal weight		Overweight compared to normal weight
	OR	(95% CI)	OR	(95% CI)	OR	(95% CI)	OR	(95% CI)
BMI
Normal weight	1.00		1.00		1.00		1.00
Underweight	14.46*	(8.16–25.63)	0.17†	(0.02–1.24)	24.86* *	(11.50–53.78)	N/A
Overweight	0.22	(0.03–1.64)	15.49*	(9.46–25.37)	0.71	(0.15–3.24)	13.26*	(7.28–24.13)

Notes:

† P < 0.1;

* P < 0.01.

Abbreviation: N/A, not available.

Table 2 Distributions (%) and unadjusted/adjusted odds ratios (ORs) (95% confidence intervals, CIs) for young Korean women aged 20–29 years reporting suicidal ideationa by body mass index (BMI) and body weight perception (BWP) in the 2001 and 2005 Korean National Health and Nutrition Examination Survey (KNHANES)

	2001 KNHANES (N = 568)								2005 KNHANES (N = 385)
	N	%b	Unadjusted		Adjusted model 1c		Adjusted model 2c		N	%b	Unadjusted		Adjusted model 1c		Adjusted model 2c
			OR	(95% CI)	OR	(95% CI)	OR	(95% CI)			OR	(95% CI)	OR	(95% CI)	OR	(95% CI)
BMI		*								*
Normal weight	342	16.96	1.00		1.00		1.00		221	11.76	1.00		1.00		1.00
Under weight	86	19.77	1.21	(0.66–2.20)	1.19	(0.65–2.18)	1.12	(0.54–2.35)	59	22.03	2.12*	(1.01–4.44)	1.84	(0.84–4.02)	1.77	(0.62–5.05)
Over weight	140	27.14	1.82*	(1.14–2.91)	1.73*	(1.07–2.79)	1.29	(0.71–2.34)	105	23.81	2.34*	(1.28–4.30)	2.54*	(1.35–4.81)	1.69	(0.79–3.62)
BWP		*								**
Normal weight	307	15.96	1.00				1.00		176	10.23	1.00				1.00
Under weight	96	19.79	1.30	(0.72–2.34)			1.29	(0.63–2.65)	72	19.44	2.12	(0.99–4.53)			1.51	(0.55–4.13)
Over weight	165	27.27	1.97**	(1.25–3.13)			1.68†	(0.95–2.98)	137	23.36	2.68*	(1.43–5.01)			2.20*	(1.01–4.81)

Notes:

† P < 0.1;

* P < 0.05;

** P < 0.01;

a 19.9% females in 2001 and 16.6% females in 2005 reported thinking about suicide during the past 12 months;

b Percentage of “non-suicidal ideation” was not presented in this table because the answer category was either “non-suicidal ideation” or “suicidal ideation”;

c Model 1 was adjusted for age, marital status, educational attainment, employment status, smoking status, alcohol intake, and regular exercise; Model 2 was adjusted for Model 1 and BWP.