Table 2 Relative risk (RR) and 95% confidence intervals (CIs) of the increase in lung cancer incidence with change in coal capacity, among males and females
From: A global perspective on coal-fired power plants and burden of lung cancer
| Univariate | Behavior-Environmental | 5-year-lag | 10-year-lag | 15-year-lag | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| RR | 95% CI | RR | 95% CI | RR | 95% CI | RR | 95%CI | RR | 95% CI | |
| Males | ||||||||||
| Intercept | 3.16 × 10− 4 | (1.82 ~ 5.49) × 10− 4 | 7.83 × 10− 5 | (0.29 ~ 2.09) × 10− 4 | 3.20 × 10− 5 | (0.77 ~ 13.2) × 10−5 | 3.12 × 10− 5 | (0.74 ~ 13.2) × 10− 5 | 2.82 × 10− 5 | (0.60~13.3) × 10− 5 |
| Per capita coal capacity a | 2.62 | (1.40 ~ 4.90) | 3.88 | (2.22 ~ 6.78) | 1.68 | (1.10 ~ 2.56) | 1.59 | (1.07 ~ 2.35) | 1.57 | (1.05~2.35) |
| Smoking prevalence b | 1.03 | (1.02 ~ 1.05) | 1.03 | (1.01 ~ 1.05) | 1.03 | (1.01 ~ 1.05) | 1.03 | (1.01~1.06) | ||
| Non-coal capacity a | 0.94 | (0.79 ~ 1.12) | 0.92 | (0.76 ~ 1.10) | 0.90 | (0.73~1.11) | ||||
| Traffic index b | 1.00 | (0.98 ~ 1.02) | 1.00 | (0.98 ~ 1.02) | 1.00 | (0.98~1.03) | ||||
| Industrialization index b | 1.03 | (1.00 ~ 1.05) | 1.03 | (1.00 ~ 1.05) | 1.03 | (1.00~1.05) | ||||
| GDP (PPP) per capita c | 1.00 | (1.00 ~ 1.00) | 1.00 | (1.00 ~ 1.00) | 1.00 | (1.00~1.00) | ||||
| Total coal consumption d | 1.01 | (1.00 ~ 1.02) | 1.01 | (1.00 ~ 1.02) | 1.01 | (1.00~1.02) | ||||
| QIC | −5,828,520 | −5,812,294 | − 5,134,366 | −5,133,338 | − 5,043,156 | |||||
| Females | ||||||||||
| Intercept | 1.03 × 10−4 | (0.58~ 1.86) × 10− 4 | 1.04 × 10− 4 | (0.49 ~ 2.20) × 10− 4 | 1.21 × 10−5 | (0.35 ~ 4.13) × 10− 5 | 1.16 × 10− 5 | (0.34 ~ 3.99) × 10− 5 | 1.08 × 10− 5 | (0.33~3.57) × 10− 5 |
| Per capita coal capacity a | 3.87 | (2.23 ~ 6.69) | 3.95 | (2.71 ~ 5.76) | 1.84 | (1.16 ~ 2.93) | 1.85 | (1.22 ~ 2.82) | 1.85 | (1.22~2.80) |
| Smoking prevalence b | 1.00 | (0.96 ~ 1.04) | 1.02 | (1.00 ~ 1.05) | 1.02 | (1.00 ~ 1.05) | 1.02 | (1.00~1.05) | ||
| Non-coal capacity a | 1.00 | (0.80 ~ 1.26) | 0.99 | (0.78 ~ 1.24) | 0.98 | (0.77~1.25) | ||||
| Traffic index b | 1.00 | (0.99 ~ 1.02) | 1.00 | (0.99 ~ 1.02) | 1.00 | (0.99~1.02) | ||||
| Industrialization index b | 1.06 | (1.023 ~ 1.09) | 1.06 | (1.03 ~ 1.10) | 1.06 | (1.03~1.10) | ||||
| GDP (PPP) per capita c | 1.00 | (1.00 ~ 1.00) | 1.00 | (1.00 ~ 1.00) | 1.00 | (1.00~1.00) | ||||
| Total coal consumption d | 1.02 | (1.00 ~ 1.04) | 1.02 | (1.01 ~ 1.04) | 1.02 | (1.01~1.04) | ||||
| QIC | −1,623,308 | −1,610,209 | − 1,488,001 | −1,488,392 | − 1,459,133 | |||||