From: Ambient temperature and coronary heart disease mortality in Beijing, China: a time series study
Effects | group | Relative risk (95% CI) | |
---|---|---|---|
 |  | Time series | Case-crossover |
Cold effect a | All | 1.16 (1.04, 1.30)* | 1.29 (1.12, 1.48) * |
 | Male | 1.15 (0.95, 1.39) | 1.24 (0.97, 1.59) * |
 | Female | 1.18 (1.03, 1.34) * | 1.31 (1.11, 1.55) * |
 | Age < 65 | 1.12 (0.99, 1.27) | 1.21 (1.02, 1.42) * |
 | Age > =65 | 1.29 (1.06, 1.58) * | 1.49 (1.15, 1.93) * |
Hot effect b | All | 1.38 (1.20, 1.60) * | 1.39 (1.15, 1.67) * |
 | Male | 1.37 (1.16, 1.62) * | 1.37 (0.99, 1.88) |
 | Female | 1.42 (1.11, 1.81) * | 1.40 (1.12, 1.75) * |
 | Age < 65 | 1.35 (1.15, 1.59) * | 1.36 (1.09, 1.68) * |
 | Age > =65 | 1.47 (1.13, 1.91) * | 1.48 (1.05, 2.08) * |