Table 6.
Association of alcohol drinking with (a) PSA levels in controls, stratified according to changes in drinking behavior in the last 10 years
| Same drinking behavior | Changed drinking behavior | |||||
|---|---|---|---|---|---|---|
| Exposure | Nco | RGM1 | (95% CI) | N | RGM1 | (95% CI) |
| Binge drinking2 (Yes versus No) | 806 | 0.96 | (0.91; 1.01) | 650 | 0.97 | (0.91; 1.03) |
| Drinking most days (Yes versus No) | 2,738 | 0.96 | (0.93; 1.00) | 1,974 | 0.96 | (0.92; 1.01) |
| Categories of consumption | ||||||
| Nondrinker | 704 | 0.93 | (0.87; 0.99) | 294 | 0.95 | (0.86; 1.05) |
| Special occasions only | 431 | 1.00 | (0.93; 1.08) | 163 | 0.99 | (0.87; 1.12) |
| 1st third of weekly intake | 2,649 | 1 | – | 1,019 | 1 | – |
| 2nd third of weekly intake | 2,224 | 0.96 | (0.92; 1.01) | 1,376 | 1.01 | (0.95; 1.07) |
| 3rd third of weekly intake | 1,954 | 0.91 | (0.87; 0.95) | 1,417 | 0.97 | (0.90; 1.04) |
1
Adjusted for age, center and date of recruitment and clinic visit.
2
Regularly consuming 5+ units/occasion.
Abbreviations PSA, prostate-specific antigen; RGM, ratio of geometric means; CI, confidence interval; Nco, number of controls.