Table 2.
Pooled relative risks by sex and cancer types1
| Cancer type | Sex | Light |
Light to moderate |
Moderate to heavy |
Heavy |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of studies | RR (95% CI) | No. of studies | RR (95% CI) | No. of studies | RR (95% CI) | No. of studies | RR (95% CI) | ||||
| Esophageal cancer | Male | 8 | 1.65 (1.36, 1.99) | 8 | 1.88 (1.52, 2.34) | 7 | 2.86 (2.45, 3.33) | 11 | 3.94 (3.04, 5.10) | ||
| Female | 2 | 1.17 (1.00, 1.37) | 2 | 1.21 (1.02, 1.42) | - | - | - | - | - | - | |
| Stomach cancer | Male | 4 | 1.00 (0.92, 1.08) | 4 | 1.06 (0.96, 1.17) | 4 | 1.19 (1.07, 1.33) | 7 | 1.17 (1.03, 1.33) | ||
| Female | 3 | 0.87 (0.58, 1.31) | 2 | 1.02 (0.56, 1.87) | - | - | - | - | - | - | |
| Liver cancer | Male | 2 | 0.93 (0.81, 1.06) | 2 | 1.15 (0.65, 2.04) | 2 | 1.12 (0.96, 1.31) | 4 | 1.21 (1.12, 1.31) | ||
| Female | 4 | 0.94 (0.75, 1.17) | 3 | 1.25 (0.98, 1.57) | - | - | - | - | - | - | |
| Pancreatic cancer | Male | 6 | 0.99 (0.89, 1.11) | 5 | 1.05 (0.94, 1.17) | 3 | 1.36 (1.19, 1.57) | 8 | 1.28 (1.16, 1.41) | ||
| Female | 4 | 0.91 (0.82, 0.99) | 3 | 1.07 (0.97, 1.18) | 2 | 1.15 (0.98, 1.36) | 3 | 1.36 (1.15, 1.62) | |||
| Colorectal cancer | Male | 13 | 1.16 (1.04, 1.28) | 11 | 1.14 (1.09, 1.20) | 8 | 1.29 (1.23, 1.34) | 12 | 1.55 (1.46, 1.66) | ||
| Female | 11 | 1.00 (0.97, 1.04) | 10 | 1.01 (0.78, 1.30) | 4 | 1.07 (1.00, 1.14) | 5 | 1.09 (0.79, 1.50) | |||
| Lung cancer | Male | 9 | 0.89 (0.85, 0.92) | 8 | 0.90 (0.86, 0.94) | 9 | 0.97 (0.93, 1.01) | 8 | 1.11 (1.03, 1.20) | ||
| Female | 8 | 0.93 (0.79, 1.09) | 7 | 1.04 (0.98, 1.10) | 6 | 1.00 (0.91, 1.10) | 3 | 0.89 (0.66, 1.21) | |||
| Thyroid cancer2 | Female | 4 | 0.89 (0.77, 1.03) | 3 | 0.67 (0.55, 0.82) | - | - | - | - | - | - |
RR, relative risk; CI, confidence intervals.
1
The range of alcohol consumption levels was divided into light (0.01-12.4 g/day), light to moderate (12.5-24.9 g/day), moderate to heavy (25.0-49.9 g/day), and heavy (≥50.0 g/day).
2
Thyroid cancer (male) and laryngeal cancer were not presented because data from 1 or no study were obtained in this study, and information on sex-specific cancer incidence was insufficient.