Table 7.
Association of alcohol drinking with prostate cancer risk comparing cases and controls, stratified according to changes in drinking behavior in the last 10 years
| Same drinking behavior | Changed drinking behavior | |||||
|---|---|---|---|---|---|---|
| Exposure | Nca/Nco | OR1 | (95% CI) | Nca/Nco | OR1 | (95% CI) |
| Binge drinking2 (Yes versus No) | 147/806 | 0.94 | (0.77; 1.15) | 114/650 | 0.89 | (0.70; 1.13) |
| Drinking most days (Yes versus No) | 500/2,738 | 0.93 | (0.82; 1.05) | 348/1,974 | 0.98 | (0.82; 1.16) |
| Categories of consumption | ||||||
| Nondrinker | 132/704 | 0.92 | (0.74; 1.14) | 44/294 | 0.81 | (0.55; 1.19) |
| Special occasions only | 95/431 | 1.10 | (0.86; 1.41) | 25/163 | 0.86 | (0.53; 1.40) |
| 1st third of weekly intake | 536/2,649 | 1 | – | 182/1,019 | 1 | – |
| 2nd third of weekly intake | 406/2,224 | 0.92 | (0.79; 1.06) | 259/1,376 | 1.00 | (0.80; 1.26) |
| 3rd third of weekly intake | 363/1,954 | 0.92 | (0.79; 1.07) | 247/1,417 | 0.93 | (0.74; 1.17) |
1
Conditional logistic regression—strata defined by age, center and date of recruitment and clinic visit—additionally adjusted for age as continuous variable
2
Regularly consuming 5þ units/occasion.
Abbreviations OR, odds ratio; CI, confidence interval; Nca/Nco, number of cases/number of controls.