Table 2.

The association between drinking status and the risk of kidney stones

	Model 1		Model 2		Model 3		Model 4
Drinking status	OR (95%CI)	P	OR (95%CI)	P	OR (95%CI)	P	OR (95%CI)	P
Former	ref		ref		ref		ref
Mild	0.79(0.68,0.92)	< 0.01	0.87(0.75,1.01)	0.07	0.93(0.80,1.09)	0.37	0.95(0.81,1.11)	0.48
Moderate	0.60(0.49,0.73)	< 0.01	0.81(0.65,1.01)	0.06	0.87(0.70,1.08)	0.19	0.89(0.72,1.11)	0.31
Heavy	0.50(0.41,0.62)	< 0.01	0.71(0.56,0.88)	< 0.01	0.73(0.58,0.94)	0.01	0.76(0.60,0.98)	0.03
p for trend		< 0.01		< 0.01		0.01		0.03

Model 1: Crude model

Model 2: Adjusting for sociolect-demographic variables (sex, age, race, marriage status, RIP, education levels)

Model 3: Adjusting for personal status variables (sex, age, race, marriage status, RIP, education levels, BMI, cancer, stroke, diabetes, heart attack, smoke status)

Model 4: Fully-adjusted mode, which adjusts for sex, age, race, marriage status, RIP, education levels, BMI, cancer, stroke, diabetes, heart attack, smoking status, energy, protein, carbohydrate, vitamin c, vitamin d, vitamin e, calcium, magnesium