Table 3.

The logistic regression of dietary niacin intake associated with PD risk.

Variable	n.total	n.event_%	Niacin (per 10 mg/d)
			OR (95%CI)	p-value
Unadjusted	20,211	192 (0.9)	0.83 (0.72–0.95)	0.009
Model 1	20,211	192 (0.9)	0.84 (0.72–0.98)	0.027
Model 2	20,211	192 (0.9)	0.77 (0.6–0.99)	0.040
Model 3	20,211	192 (0.9)	0.77 (0.6–0.99)	0.042

Model 1: adjusted for RIAGENDR, age, and race.

Model 2: adjusted for RIAGENDR, age, race, edu, marital, PIR, supp, smoke, energy, protein, carbohydrate, fat, and BMI.

Model 3: adjusted for RIAGENDR, age, race, edu, marital, PIR, supp, smoke, energy, protein, carbohydrate, fat, BMI, hypertension, DM, CHD, and stroke.

CI, confidence interval; OR, odds ratios.