Table 2.
Odds ratios for incident cataract surgery estimated with the categorical alcohol use patterns (both men and women).
| Controls, N (%) | Cases, N (%) | OR (95% CI) | ||
|---|---|---|---|---|
| Model 1b | Model 2c | |||
| Drinking frequency | ||||
| Never | 6953 (46.8) | 6590 (44.3) | 1 (reference) | 1 (reference) |
| Former | 1296 (8.7) | 1227 (8.3) | 1.07 (0.98–1.18) | 1.00 (0.91–1.09) |
| 1–3 days/week | 3636 (24.5) | 3657 (24.6) | 1.13 (1.06–1.21) | 1.10 (1.03–1.17) |
| 4–7 days/week | 2976 (20.0) | 3387 (22.8) | 1.32 (1.22–1.42) | 1.30 (1.21–1.40) |
| P for trenda | < 0.01 | < 0.01 | ||
| Average drinks | ||||
| Never | 6953 (46.8) | 6590 (44.3) | 1 (reference) | 1 (reference) |
| > 0–2 drink/day | 5641 (38.0) | 5790 (39.0) | 1.16 (1.09–1.23) | 1.13 (1.06–1.20) |
| > 2–4 drink/day | 1538 (10.3) | 1698 (11.4) | 1.27 (1.16–1.39) | 1.23 (1.12–1.35) |
| > 4 drink/day | 729 (4.9) | 783 (5.3) | 1.24 (1.10–1.39) | 1.16 (1.03–1.31) |
| P for trenda | < 0.01 | < 0.01 | ||
| Total amount of lifetime drinking | ||||
| Never | 6953 (46.8) | 6590 (44.3) | 1 (reference) | 1 (reference) |
| > 0–40 drink–years | 1307 (8.8) | 1187 (8.0) | 1.00 (0.91–1.10) | 1.01 (0.92–1.10) |
| > 40–60 drink–years | 1048 (7.1) | 1093 (7.4) | 1.18 (1.07–1.30) | 1.16 (1.05–1.28) |
| > 60–90 drink–years | 2602 (17.5) | 2670 (18.0) | 1.18 (1.09–1.27) | 1.13 (1.05–1.22) |
| > 90 drink–years | 2951 (19.9) | 3321 (22.3) | 1.32 (1.23–1.43) | 1.25 (1.16–1.34) |
| P for trenda | < 0.01 | < 0.01 | ||
OR odds ratio, CI confidence interval.
aTrend test was calculated for the associations between alcohol use patterns as a continuous variable and incident cataract surgery.
bConditional logistic regression matched for sex, age, admission date, and hospital.
cAdditionally adjusted for smoking history, lifestyle-related comorbidities (hypertension, hyperlipidaemia, diabetes, and obesity), occupational radiation exposure, and outdoor work.