Table 3 Relative risk (RR) estimates and 95% confidence intervals for preterm births and Maximum temperature. All RRs are relative to median value of Maximum temperature distribution (26.9 °C)
From: Environmental extreme temperature and daily preterm birth in Sabzevar, Iran: a time-series analysis
Model 1 | Model 2 (additionally adjusted for air pollution) | |||||||
|---|---|---|---|---|---|---|---|---|
P1 | P25 | P75 | P99 | P1 | P25 | P75 | P99 | |
lag0 | 1.78 (1.56: 2.03) | 1.12 (1.01: 1.24) | 1.18 (1.07: 1.3) | 1.57 (1.38: 1.80) | 1.75 (1.53: 1.99) | 1.12 (1.01: 1.24) | 1.18 (1.07: 1.3) | 1.53 (1.33: 1.76) |
lag1 | 1.54 (1.42: 1.67) | 1.09 (1.03: 1.17) | 1.11 (1.05: 1.19) | 1.38 (1.26: 1.50) | 1.52 (1.39: 1.65) | 1.1 (1.03: 1.17) | 1.11 (1.04: 1.18) | 1.34 (1.22: 1.47) |
lag2 | 1.35 (1.27: 1.42) | 1.07 (1.02: 1.12) | 1.06 (1.01: 1.1) | 1.22 (1.15: 1.29) | 1.33 (1.25: 1.41) | 1.07 (1.03: 1.12) | 1.05 (1.01: 1.1) | 1.18 (1.11: 1.26) |
lag3 | 1.2 (1.13: 1.27) | 1.05 (1: 1.1) | 1.01 (0.97: 1.06) | 1.09 (1.03: 1.17) | 1.18 (1.11: 1.26) | 1.05 (1: 1.1) | 1 (0.96: 1.05) | 1.07 (1: 1.14) |
lag4 | 1.1 (1.02: 1.18) | 1.03 (0.98: 1.09) | 0.98 (0.93: 1.04) | 1.01 (0.94: 1.09) | 1.09 (1.01: 1.17) | 1.04 (0.98: 1.1) | 0.97 (0.92: 1.03) | 0.99 (0.91: 1.08) |
lag5 | 1.04 (0.97: 1.12) | 1.02 (0.97: 1.08) | 0.97 (0.91: 1.02) | 0.97 (0.90: 1.05) | 1.03 (0.96: 1.11) | 1.03 (0.97: 1.08) | 0.96 (0.91: 1.01) | 0.96 (0.88: 1.04) |
lag6 | 1.03 (0.97: 1.09) | 1.02 (0.97: 1.07) | 0.97 (0.93: 1.02) | 0.97 (0.91: 1.04) | 1.02 (0.95: 1.08) | 1.02 (0.97: 1.07) | 0.96 (0.92: 1.01) | 0.96 (0.9: 1.03) |
lag7 | 1.04 (0.98: 1.09) | 1.02 (0.97: 1.06) | 0.99 (0.95: 1.03) | 1.00 (0.95: 1.06) | 1.02 (0.97: 1.08) | 1.01 (0.97: 1.06) | 0.98 (0.94: 1.02) | 0.99 (0.93: 1.06) |
lag8 | 1.06 (1: 1.13) | 1.02 (0.97: 1.07) | 1.01 (0.96: 1.06) | 1.04 (0.97: 1.11) | 1.05 (0.98: 1.12) | 1.01 (0.96: 1.06) | 1.01 (0.96: 1.06) | 1.03 (0.96: 1.11) |
lag9 | 1.08 (1.01: 1.17) | 1.02 (0.96: 1.07) | 1.03 (0.97: 1.09) | 1.08 (1.00: 1.17) | 1.07 (0.99: 1.15) | 1.01 (0.95: 1.07) | 1.03 (0.97: 1.09) | 1.07 (0.99: 1.17) |
lag10 | 1.09 (1.01: 1.17) | 1.01 (0.96: 1.07) | 1.05 (0.99: 1.1) | 1.10 (1.02: 1.19) | 1.07 (1: 1.16) | 1 (0.95: 1.06) | 1.05 (0.99: 1.11) | 1.1 (1.01: 1.19) |
lag11 | 1.08 (1.01: 1.15) | 1.01 (0.96: 1.05) | 1.06 (1.01: 1.11) | 1.11 (1.04: 1.18) | 1.06 (1: 1.13) | 0.99 (0.95: 1.04) | 1.06 (1.01: 1.11) | 1.1 (1.03: 1.18) |
lag12 | 1.05 (0.99: 1.12) | 1 (0.95: 1.04) | 1.06 (1.01: 1.11) | 1.10 (1.03: 1.17) | 1.04 (0.98: 1.11) | 0.98 (0.94: 1.03) | 1.06 (1.01: 1.11) | 1.09 (1.02: 1.16) |
lag13 | 1.02 (0.93: 1.11) | 0.99 (0.92: 1.05) | 1.06 (0.99: 1.13) | 1.08 (0.98: 1.18) | 1.01 (0.92: 1.11) | 0.98 (0.91: 1.04) | 1.05 (0.99: 1.12) | 1.07 (0.97: 1.17) |
lag14 | 0.98 (0.85: 1.12) | 0.97 (0.88: 1.08) | 1.06 (0.96: 1.17) | 1.05 (0.92: 1.21) | 0.98 (0.85: 1.12) | 0.97 (0.87: 1.07) | 1.05 (0.95: 1.16) | 1.04 (0.89: 1.2) |