Table 2.

Multivariate odds ratios (95% confidence interval) for obesity according to income and education levels, stratified by sex and each dataset for the 2001, 2005, and 2007 to 2009 Korea National Health and Nutrition Examination Survey

Model 1, adjusted for age, marital status, and the other socioeconomic status factor; Model 2, adjusted for covariates in model 1, smoking, alcohol use, and weekly exercise; Model 3, adjusted for covariates in model 2, stress level, and depression.

¹Q1, Q2, Q3, and Q4 refer to quartiles of income (2001: <1 000 000 Korean won [KRW], 1 000 000 to <1 800 000 KRW, 1 800 000 to <2 500 000 KRW, and ≥2 500 000 KRW; 2005: <1 000 000 KRW, 1 000 000 to <2 000 000 KRW, 2 000 000 to <3 000 000 KRW, and ≥3 000 000 KRW; 2007-2009: <1 150 000 KRW, 1 150 000 to <2 500 000 KRW, 2 500 000 to <3 900 000 KRW, and ≥3 900 000 KRW).