Table 3.
RCC-to-LCC ratio of relative risks (RRRs) and 95% confidence intervals (CIs) for sensitivity analysis.
| No. of studies | RRR (95%CI) | I2,% | P heterogeneity | P value for interaction | |
|---|---|---|---|---|---|
| Geographical area | |||||
| USA | 6 | 1.10 (0.98-1.25) | 0 | 0.758 | 0.406 |
| Europe | 4 | 1.25 (0.96-1.63) | 22.7 | 0.275 | |
| Sex | |||||
| Males | 5 | 1.12 (0.95-1.33) | 0 | 0.824 | 0.430 |
| Females | 5 | 1.26 (1.00-1.58) | 0 | 0.456 | |
| Definition of RCC and LCC | |||||
| Definition 1 | 8 | 1.10 (0.95-1.27) | 0 | 0.860 | 0.411 |
| Definition 2 | 2 | 1.32 (0.87-2.02) | 71.9 | 0.059 | |
| Duration of follow-up | |||||
| < 15 years | 5 | 1.09 (0.96-1.23) | 0 | 0.645 | 0.171 |
| ≥ 15 years | 5 | 1.30 (1.04-1.64) | 0 | 0.572 | |
| Level of adjustment | |||||
| Age-adjusted | 5 | 1.04 (0.89-1.23) | 0 | 0.932 | 0.837 |
| Multi-adjusted | 5 | 1.07 (0.90-1.27) | 0 | 0.950 |