Table 4: Observed cancer cases in Alberta in 2012 and proportions attributable to alcohol consumption.
| Age at exposure, yr | Age at outcome, yr | Larynx | Colorectum | Liver | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No. of cases observed | PAR, % (95% CI) | No. of EACs (95% CI)* | No. of cases observed | PAR, % (95% CI) | No. of EACs (95% CI)* | No. of cases observed | PAR, % (95% CI) | No. of EACs (95% CI)* | ||
| Men | ||||||||||
| 20-34 | 30-44 | < 5 | 19.4 (17.6-21.4) | 0 | 37 | 7.9 (4.9-12.8) | 3 (2-5) | < 5 | 7.9 (5.9-11.3) | 0 |
| 35-49 | 45-59 | 18 | 13.2 (12.1-14.5) | 2 (2-3) | 276 | 6.2 (3.9-9.8) | 17 (11-27) | 58 | 5.5 (4.0-7.7) | 3 (2-4) |
| 50-64 | 60-74 | 37 | 13 (11.8-14.2) | 5 (4-5) | 454 | 5.4 (3.4-8.6) | 25 (15-39) | 54 | 5.5 (4.0-7.7) | 3 (2-4) |
| ≥ 65 | ≥ 75 | 7 | 8.6 (7.8-9.4) | 1 (1-1) | 338 | 4.5 (2.8-7.2) | 15 (9-24) | 34 | 3.6 (2.6-5.0) | 1 (1-2) |
| Total | < 67 | 8 | 1105 | 60 | < 151 | 8 | ||||
| Women | ||||||||||
| 20-34 | 30-44 | - | - | - | 35 | 3.0 (1.9-4.8) | 1 (1-2) | < 5 | 2.5 (1.8-3.5) | 0 |
| 35-49 | 45-59 | < 5 | 5.3 (4.8-5.8) | 0 | 193 | 2.9 (1.8-4.7) | 6 (3-9) | 17 | 2.2 (1.6-3.1) | 0 (0-1) |
| 50-64 | 60-74 | 6 | 5.2 (4.9-5.5) | 0 (0-0) | 292 | 2.3 (1.4-3.6) | 7 (4-11) | 32 | 2.2 (1.5-3.1) | 1 (1-1) |
| ≥ 65 | ≥ 75 | 5 | 3.3 (3.0-3.7) | 0 (0-0) | 326 | 1.3 (0.9-2.2) | 4 (3-7) | 18 | 1.4 (1.0-1.9) | 0 (0-0) |
| Total | < 16 | 0 | 846 | 18 | < 72 | 1 | ||||
| Men | ||||||||||
| 20-34 | 30-44 | < 5 | 18.4 (17.3-19.7) | < 5 | 24 | 27.5 (25.7-29.5) | 7 (6-8) | - | - | - |
| 35-49 | 45-59 | 41 | 14.2 (13.3-15.1) | 6 (5-6) | 119 | 20.9 (19.5-22.4) | 25 (23-27) | - | - | - |
| 50-64 | 60-74 | 69 | 12.4 (11.7-13.2) | 9 (8-9) | 96 | 18.3 (17.1-19.6) | 18 (16-19) | - | - | - |
| ≥ 65 | ≥ 75 | 37 | 10.5 (9.8-11.2) | 4 (4-4) | 34 | 15.8 (14.7-17.0) | 5 (5-6) | - | - | - |
| Total | < 152 | < 24 | 273 | 54 | - | - | ||||
| Women | ||||||||||
| 20-34 | 30-44 | < 5 | 6.9 (6.5-7.4) | 0 | 12 | 10.3 (9.6-11.0) | 1 (1-1) | 257 | 3.7 (2.9-4.7) | 9 (7-12) |
| 35-49 | 45-59 | 9 | 6.9 (6.4-7.3) | 1 (1-1) | 22 | 10.3 (9.6-11.1) | 2 (2-2) | 798 | 3.6 (2.9-4.5) | 29 (23-36) |
| 50-64 | 60-74 | 15 | 5.2 (4.9-5.5) | 1 (1-1) | 34 | 7.6 (7.1-8.2) | 3 (2-3) | 840 | 2.8 (2.2-3.5) | 23 (18-29) |
| ≥ 65 | ≥ 75 | 7 | 3.1 (2.9-3.3) | 0 (0-0) | 32 | 4.6 (4.3-4.9) | 1 (1-2) | 427 | 1.7 (1.3-2.1) | 7 (6-9) |
| Total | < 36 | 2 | 100 | 8 | 2322 | 69 | ||||
Note: CI = confidence interval, EAC = excess attributable cases due to exposure, PAR = population attributable risk.
*Number of cancer cases at individual cancer sites that can be attributed to alcohol consumption.