Table 4.

Total dietary flavonoid intakes by quartile (Q) of intake and reduction of the risk of age-related cataract (66 controls and 249 cases) (Odds ratios and 95% confidence intervals)

		Energy adjusted			Multivariate adjusteda
	Intake (mg/d)	OR	95% CI	p	OR	95% CI	p
Anthocyanidins
Q1	<5.94
Q2	5.94–11.46	1.41	0.56–3.57	0.464	0.86	0.17–4.25	0.855
Q3	11.46–17.95	1.94	0.80–4.71	0.140	0.89	0.19–4.31	0.888
Q4	≥17.95	4.60	2.00–10.58	<0.001	3.81	0.76–19.09	0.104
Flavan-3-ols
Q1	<7.77
Q2	7.77–11.11	2.66	0.97–7.33	0.058	1.34	0.24–7.36	0.737
Q3	11.11–16.02	6.32	2.43–16.39	<0.001	4.99	0.88–28.43	0.070
Q4	≥16.02	3.85	1.45–10.26	0.007	7.33	1.00–53.80	0.050
Flavanones
Q1	<2.35
Q2	2.35–6.15	1.45	0.70–2.98	0.316	1.21	0.33–4.48	0.776
Q3	6.15–10.37	0.65	0.29–1.48	0.305	0.34	0.08–1.42	0.138
Q4	≥10.37	0.77	0.35–1.7	0.522	0.33	0.07–1.46	0.143
Flavones
Q1	<1.30
Q2	1.30–1.90	2.07	0.86–4.97	0.104	1.18	0.24–5.80	0.840
Q3	1.90–2.41	2.47	1.04–5.87	0.040	2.31	0.42–12.65	0.336
Q4	≥2.41	2.78	1.18–6.53	0.019	3.29	0.57–18.91	0.182
Flavonols
Q1	<12.78
Q2	12.78–18.92	3.69	1.15–11.88	0.028	1.58	0.31–7.98	0.582
Q3	18.92–24.56	6.36	2.06–19.60	0.001	1.30	0.22–7.86	0.773
Q4	≥24.56	11.1	3.67–33.52	<0.001	0.82	0.1–6.41	0.846
Flavonoids
Q1	<40.62
Q2	40.62–54.08	6.35	1.77–22.77	0.005	3.21	0.6–17.15	0.171
Q3	54.08–66.26	7.37	2.08–26.21	0.002	2.26	0.38–13.45	0.371
Q4	≥66.26	14.5	4.19–50.15	<0.001	3.65	0.49–27.29	0.207

^aMultivariate adjusted OR for energy, age at diagnosis, education, hypertension, diabetes, family income, waistline:hipline, dietary fiber, vitaminB6, vitaminB12, folate, vitamin C, vitamin E, calcium, potassium, copper, and manganese.