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 |