Table 6. Logistic regression analysis of annual drinkers, ex-drinkers, and salty taste preferences.

Variables			Drinking, OR (95% CI)
Usual salt intake level			Very unsalty	Unsalty	Normal	Salty	Very salty
	Annual drinker
		Unadjusted model1)	1 (ref)	1.40*** (1.35–1.45)	1.65*** (1.60–1.71)	2.49*** (2.40–2.58)	2.94*** (2.72–3.17)
		Fully adjusted model2)	1 (ref)	1.46*** (1.40–1.52)	1.72*** (1.66–1.79)	2.45*** (2.36–2.55)	2.94*** (2.71–3.19)
	Ex-drinker
		Unadjusted model1)	1 (ref)	0.95* (0.91–1.00)	0.85*** (0.81–0.88)	1.02NS (0.97–1.06)	1.05NS (0.95–1.17)
		Fully adjusted model2)	1 (ref)	1.00NS (0.95–1.04)	0.91*** (0.87–0.95)	1.09*** (1.05–1.15)	1.11NS (1.00–1.23)
Adding salt or soy sauce at the table			Never added	Rarely added	Often added	Always added	-
	Annual drinker
		Unadjusted model1)	1 (ref)	1.02*** (1.01–1.04)	1.23*** (1.19–1.27)	1.41*** (1.28–1.57)	-
		Fully adjusted model2)	1 (ref)	0.95*** (0.93–0.96)	1.14*** (1.11–1.18)	1.34*** (1.20–1.50)	-
	Ex-drinker
		Unadjusted model1)	1 (ref)	0.89*** (0.88–0.91)	1.00*** (0.96–1.04)	1.09*** (0.96–1.24)	-
		Fully adjusted model2)	1 (ref)	0.89*** (0.87–0.90)	0.95* (0.91–0.99)	1.01NS (0.88–1.16)	-
Dipping the soy sauce when eating fried food			Never dipped	Occasionally dipped	Always dipped	-	-
	Annual drinker
		Unadjusted model1)	1 (ref)	1.93*** (1.90–1.96)	3.24*** (3.18–3.30)	-	-
		Fully adjusted model2)	1 (ref)	1.43*** (1.41–1.45)	1.98*** (1.94–2.02)	-	-
	Ex-drinker
		Unadjusted model1)	1 (ref)	1.20*** (1.18–1.23)	1.50*** (1.46–1.54)	-	-
		Fully adjusted model2)	1 (ref)	1.11*** (1.09–1.13)	1.27*** (1.23–1.30)	-	-

OR, odds ratio; CI, confidence interval; NS, not significant.

¹⁾Unadjusted = crude odds ratios are calculated from logistic regression models; ²⁾Fully adj = multivariable adjusted odds ratios are from logistic regression models adjusted for age, sex, body mass index, education, family income, marital status, and smoking.

^*P < 0.05, ^***P < 0.001.