Table 2. Odds ratio for of self-reported glaucoma by supplemental intake of vitamins A, C, and E.

	Unadjusted			Adjusted model Aa			Adjusted model Bb			Adjusted model Cc
	OR	95% CI	P-trend	OR	95% CI	P-trend	OR	95% CI	P-trend	OR	95% CI	P-trend
Vitamin A
No consumption	1.00		0.742	1.00		0.878	1.00		0.638	1.00		0.286
Firstquartile (≤2500 IU/day)	0.56	0.22–1.47		0.58	0.22–1.55		0.60	0.23–1.58		0.55	0.20–1.49
Second quartile (>2500 IU/day)	1.04	0.40–2.70		1.01	0.39–2.58		0.98	0.36–2.65		0.97	0.31–3.05
Third quartile (>3500 IU/day)	1.51	0.65–3.50		1.60	0.65–3.93		1.48	0.58–3.77		1.08	0.32–3.67
Fourth quartile (>6333 IU/day)	0.98	0.38–2.55		0.78	0.29–2.09		0.69	0.23–2.03		0.48	0.13–1.82
Vitamin C
No consumption	1.00		0.556	1.00		0.608	1.00		0.447	1.00		0.227
First quartile (≤100 mg/day)	0.35	0.13–0.92		0.33	0.13–0.83		0.34	0.14–0.81		0.34	0.13–0.87
Second quartile (>100 mg/day)	1.76	0.90–3.44		1.77	0.90–3.47		1.72	0.88–3.35		1.38	0.76–2.50
Third quartile (>500 mg/day)	1.57	0.73–3.37		1.14	0.50–2.60		1.10	0.48–2.54		0.97	0.42–2.25
Fourth quartile (>900 mg/day)	0.63	0.36–1.10		0.53	0.29–0.95		0.48	0.26–0.91		0.47	0.23–0.97
Vitamin E
No consumption	1.00		0.004	1.00		0.065	1.00		0.052	1.00		0.098
First quartile (≤30 IU/day)	0.40	0.14–1.17		0.52	0.17–1.58		0.54	0.17–1.72		0.63	0.20–1.97
Second quartile (>30 IU/day)	1.26	0.68–2.34		1.34	0.67–2.67		1.38	0.68–2.81		1.36	0.67–2.79
Third quartile (>96 IU/day)	1.40	0.95–2.06		1.00	0.65–1.55		0.97	0.63–1.47		1.01	0.64–1.60
Fourth quartile (>400 IU/day)	3.40	1.58–7.33		3.20	1.29–7.89		3.15	1.29–7.72		2.59	0.89–7.56

Bold values represent ORs or trend P-values which are statistically significant.

^aModel A adjusted for age.

^bModel B adjusted for age and demographic variables of sex, race, annual household income, and education level.

^cModel C adjusted for age, demographic variables, and HRB of smoking (current, past, never) and alcohol intake (number of drinks per day), self-reported general health condition, and self-reported diabetic retinopathy.