Table 3.

The predictors for good dietary behavior in China, Korea, and Japan.

	OR (95% CI) in China	OR (95% CI) in Korea	OR (95% CI) in Japan
Sex
Male	Reference	Reference	Reference
Female	2.99 (2.28, 3.91)∗	1.50 (1.09, 2.06)∗	3.27 (2.55, 4.20)∗
Age, years
20–29	Reference	Reference	Reference
30–39	0.93 (0.57, 1.53)	1.34 (0.76, 2.37)	1.55 (1.03, 2.33)
40–49	1.03 (0.6, 1.78)	1.56 (0.82, 2.96)	1.84 (1.19, 2.83)*
50–59	1.86 (1.06, 3.29)*	2.90 (1.46, 5.77)*	3.0 (1.91, 4.71)*
>60	2.33 (1.27, 4.28)*	6.11 (2.8, 13.32)*	6.94 (4.27, 11.3)*
Marriage
Single	0.53 (0.32, 0.87)∗	0.55 (0.32, 0.94)∗	0.94 (0.68, 1.30)
Married	Reference	Reference	Reference
Divorced	0.52 (0.21, 1.31)	0.53 (0.21, 1.33)	0.81 (0.49, 1.33)
Widowed	0.72 (0.27, 1.95)	1.01 (0.48, 2.14)	0.77 (0.30, 2.02)
Education
Less than primary schools	Reference	Reference	Reference
Middle School	1.29 (0.74, 2.23)	0.90 (0.44, 1.83)	1.29 (0.74, 2.23)
High School	1.12 (0.62, 2.03)	0.99 (0.51, 1.94)	1.12 (0.62, 2.03)
Technical Secondary School	1.26 (0.69, 2.29)	1.37 (0.64, 2.89)	1.26 (0.69, 2.29)
College, Graduate School	1.81 (0.95, 3.42)	1.45 (0.71, 2.99)	1.81 (0.95, 3.42)
BMI. kg/m2
<18.5	Reference	Reference	Reference
18.5–24.9	1.59 (0.89, 2.84)	0.71 (0.36, 1.40)	1.15 (0.77, 1.71)
25–30	1.37 (0.74, 2.54)	0.62 (0.29, 1.33)	0.71 (0.44, 1.14)
>30	1.13 (0.51, 2.48)	0.55 (0.18, 1.66)	0.80 (0.40, 1.60)
Hypertension
Yes	Reference	Reference	Reference
No	0.75 (0.51, 1.10)	0.88 (0.56, 1.38)	0.64 (0.44, 0.94)∗
Diabetes
Yes	Reference	Reference	Reference
No	0.65 (0.36, 1.18)	1.05 (0.55, 2.01)	1.39 (0.79, 2.43)
Hyperlipidemia
Yes	Reference	Reference	Reference
No	1.26 (0.82, 1.95)	1.00 (0.59, 1.71)	0.73 (0.44, 1.20)
Angor pectoris
Yes	Reference	Reference	Reference
No	1.76 (0.87, 3.56)	0.81 (0.25, 2.57)	0.90 (0.35, 2.37)

BMI, body mass index; CI, confidence interval; OR, odds ratio.

Adjusted by body mass index and education.

* P < 0.05.