From: Is alcohol consumption a risk factor for prostate cancer? A systematic review and meta–analysis
Drinking categories | N/na | Unadjusted mean RR | Egger’s regression for publication bias | Test for heterogeneity | |||
---|---|---|---|---|---|---|---|
RR (95 % CI) | t–test P | Coefficient | t–test P | Q statistic P | I2 (%, 95 % CI) | ||
Abstainer | 1.00 | ||||||
Former drinker | 7/13 | 1.04 (0.92 – 1.19) | 0.5155 | –1.33 | 0.2274 | >0.05 | 1.00 (0.00 – 56.59) |
Occasional (<1.30 g/day) | 6/7 | 1.02 (0.86 – 1.21) | 0.8292 | +1.63 | 0.0542 | >0.05 | 1.00 (0.00 – 70.81) |
Low volume (1.30– < 25 g/day) | 27/62 | 1.09 (1.03 – 1.16) | 0.0031 | +0.13 | 0.5558 | >0.05 | 10.66 (0.00 – 64.80) |
Medium volume (25– < 45 g/day) | 18/20 | 1.03 (0.93 – 1.14) | 0.6046 | –0.26 | 0.4287 | >0.05 | 1.00 (0.00 – 62.37) |
High volume (45– < 65 g/day) | 10/11 | 1.13 (0.98 – 1.30) | 0.0935 | –0.32 | 0.5125 | >0.05 | 13.38 (0.00 – 53.90) |
Higher volume (65+ g/day) | 9/13 | 1.15 (1.01 – 1.13) | 0.0336 | –0.24 | 0.6353 | >0.05 | 19.94 (0.00 – 57.85) |
Any drinking | 27/126 | 1.08 (1.04 – 1.12) | 0.0033 | –0.04 | 0.7727 | >0.05 | 16.42 (0.00 – 33.73) |