Table 2 Summary of pooled odds ratios (ORs)for bladder cancer by sex, geographical region, and tea type
From: Tea consumption and risk of bladder cancer: a meta-analysis
Subgroup | Number of studies | Pooled OR | Q-test for heterogeneity | Egger test | Begg test |
|---|---|---|---|---|---|
(95% CI) | P-value (I2score) | P-value | P-value | ||
All studies | 23 | 0.94 (0.85, 1.04) | 0.103 (28.3%) | 0.518 | 0.267 |
Sex | |||||
Men | 10 | 1.03 (0.91, 1.14) | 0.534 (0.0%) | 0.446 | 0.348 |
Women | 9 | 0.85 (0.69, 1.01) | 0.461 (0.0%) | 0.638 | 0.348 |
Geographical region | |||||
Asia | 6 | 0.85 (0.69, 1.00) | 0.784 (0.0%) | 0.360 | 0.348 |
Europe | 7 | 0.92 (0.77, 1.08) | 0.841 (0.0%) | 0.789 | 0.881 |
Uruguay | 1 | 4.10 (0.00, 8.20) | - | - | - |
US/Canada | 9 | 1.02 (0.83, 1.21) | 0.008 (61.2%) | 0.723 | 0.835 |
Tea type | |||||
Green tea | 5 | 0.97 (0.73, 1.21) | 0.793 (0.0%) | 0.377 | 0.221 |
Black tea | 7 | 0.79 (0.59, 0.79) | 0.176 (33.1%) | 0.381 | 0.764 |