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. 2013 May 31;91(8):576–584. doi: 10.2471/BLT.12.113035

Table 3. Increase in hospital admissions for respiratory, infectious and cardiovascular diseases as a function of changes in mean daily temperature, by sex and age, Hong Kong Special Administrative Region, China, 1998–2009.

Characteristic Respiratory diseases
Infectious diseases
Cardiovascular diseases
Increasea (95% CI) P Increasea (95% CI) P Increasea (95% CI) P
Sex            
Male 4.1 (3.6 to 4.7) < 0.0001 1.2 (0.5 to 2.0) 0.0021 1.7 (1.1 to 2.3) < 0.0001
Female 4.7 (4.1 to 5.3) < 0.0001 0.9 (0.2 to 1.6) 0.0070 2.2 (1.6 to 2.7) < 0.0001
Age (years)            
< 15 5.0 (4.0 to 6.1) < 0.0001 1.3 (0.3 to 2.3) 0.015 1.1 (–0.4 to 2.5) 0.14
15–59 2.2 (1.3 to 3.1) < 0.0001 0.7 (0.0 to 1.5) 0.055 0.2 (–0.6 to 1.0) 0.60
60–74 3.7 (3.1 to 4.4) < 0.0001 0.1 (–0.7 to 0.8) 0.84 0.9 (0.3 to 1.6) 0.0048
≥ 75 5.1 (4.6 to 5.6) 0.0001 3.4 (2.4 to 4.4) 0.0001 3.8 (3.3 to 4.4) < 0.0001

CI, confidence interval.

a This represents the percentage increase in hospitalizations for every drop of 1 °C in mean temperature (lag 0–21) over the cooler temperature ranges (8.2–26.9 °C).

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