Table 3. cumRR of AMI admissions during extreme temperatures and RRR between the DM and non-DM group in the cold season (November–April) in public hospitals of Hong Kong SAR in 2002–2011.
| DM | Non-DM | RRR (95% confidence interval) (DM versus non-DM) | p-Value of RRR | |
|---|---|---|---|---|
| cumRR (95% confidence interval) | cumRR (95% confidence interval) | |||
| Cold season (November–April) lag 0–22 days; 12 °C versus 24 °C | ||||
| All AMI | 2.10 (1.62–2.72) | 1.43 (1.21–1.69) | 1.46 (1.07–1.99) | 0.02 |
| <75 | 2.02 (1.38–2.94) | 1.21 (0.96–1.53) | 1.66 (1.07–2.59) | 0.02 |
| ≥75 | 2.22 (1.61–3.05) | 1.67 (1.32–2.12) | 1.33 (0.89–1.97) | 0.16 |
| Female | 1.86 (1.28–2.69) | 1.59 (1.20–2.11) | 1.17 (0.73–1.86) | 0.52 |
| Male | 2.52 (1.83–3.45) | 1.32 (1.06–1.64) | 1.91 (1.30–2.80) | <0.005 |
| First admission | 2.32 (1.70–3.16) | 1.50 (1.25–1.80) | 1.55 (1.08–2.22) | 0.02 |
| Recurrent | 1.71 (1.12–2.61) | 1.24 (0.85–1.81) | 1.38 (0.78–2.43) | 0.27 |
Abbreviations: AMI, acute myocardial infarction; cumRR, cumulative relative risk; DM, diabetes mellitus; RRR, relative risk ratio.