Table 3.
Cumulative RR and 95% CI over 28 days of cold days (DP and MP) and cold events (cold days in sequence)
| Cardiovascular mortality | |||||
| Skåne | Stockholm | Jämtland | Västerbotten | ||
| Cold days | DP | 1.06 (1.01–1.11) | 1.02 (0.98–1.06) | 1.07 (0.96–1.20) | 0.93 (0.82–1.05) |
| MP | 1.15 (1.02–1.31) | 1.05 (0.95–1.15) | 1.19 (0.90–1.56) | 0.83 (0.61–1.12) | |
| Cold events (cold DIS) | 1 | 1.04 (1.01–1.08) | 1.00 (0.96–1.04) | 0.98 (0.85–1.13) | 0.94 (0.84–1.05) |
| 2 | 1.08 (1.02–1.14) | 1.01 (0.94–1.08) | 0.98 (0.77–1.24) | 0.89 (0.73–1.09) | |
| 3 | 1.11 (1.03–1.19) | 1.01 (0.92–1.11) | 0.98 (0.73–1.33) | 0.87 (0.67–1.13) | |
| 4 | 1.13 (1.04–1.23) | 1.02 (0.92–1.14) | 1.00 (0.71–1.39) | 0.86 (0.64–1.16) | |
| 5 | 1.14 (1.04–1.25) | 1.03 (0.92–1.16) | 1.02 (0.72–1.44) | 0.86 (0.63–1.18) | |
| 6 | 1.15 (1.05–1.26) | 1.05 (0.93–1.18) | 1.04 (0.74–1.47) | 0.87 (0.63–1.21) | |
| 7 | 1.15 (1.04–1.26) | 1.06 (0.94–1.20) | 1.08 (0.77–1.50) | 0.90 (0.65–1.24) | |
| 8 | 1.14 (1.04–1.25) | 1.08 (0.96–1.22) | 1.11 (0.80–1.54) | 0.93 (0.68–1.28) | |
| 9 | 1.13 (1.03–1.24) | 1.10 (0.98–1.23) | 1.15 (0.82–1.61) | 0.98 (0.72–1.33) | |
| 10 | 1.12 (1.01–1.23) | 1.12 (0.99–1.25) | 1.18 (0.82–1.71) | 1.03 (0.75–1.41) | |
| Respiratory mortality | |||||
| Skåne | Stockholm | Jämtland | Västerbotten | ||
| Cold days | DP | 1.03 (0.91–1.16) | 0.94 (0.86–1.03) | 0.84 (0.66–1.05) | 1.01 (0.76–1.35) |
| MP | 1.07 (0.79–1.45) | 0.86 (0.68–1.08) | 0.64 (0.36–1.13) | 1.03 (0.50–2.11) | |
| Cold events (cold DIS) | 1 | 1.00 (0.87–1.16) | 0.98 (0.89–1.07) | 1.04 (0.77–1.40) | 1.11 (0.86–1.45) |
| 2 | 1.02 (0.80–1.30) | 0.97 (0.82–1.14) | 1.04 (0.63–1.73) | 1.20 (0.76–1.90) | |
| 3 | 1.03 (0.76–1.42) | 0.96 (0.77–1.19) | 1.01 (0.53–1.91) | 1.26 (0.70–2.28) | |
| 4 | 1.06 (0.74–1.51) | 0.96 (0.75–1.24) | 0.95 (0.47–1.92) | 1.28 (0.65–2.53) | |
| 5 | 1.08 (0.74–1.58) | 0.97 (0.74–1.27) | 0.87 (0.42–1.80) | 1.27 (0.62–2.63) | |
| 6 | 1.11 (0.76–1.64) | 0.98 (0.74–1.30) | 0.79 (0.38–1.61) | 1.24 (0.59–2.58) | |
| 7 | 1.15 (0.78–1.68) | 1.00 (0.75–1.32) | 0.70 (0.35–1.40) | 1.18 (0.57–2.44) | |
| 8 | 1.18 (0.81–1.71) | 1.02 (0.77–1.35) | 0.61 (0.30–1.22) | 1.11 (0.54–2.26) | |
| 9 | 1.21 (0.83–1.76) | 1.04 (0.79–1.37) | 0.53 (0.26–1.10) | 1.02 (0.50–2.08) | |
| 10 | 1.23 (0.84–1.82) | 1.06 (0.81–1.40) | 0.46 (0.21–1.02) | 0.93 (0.45–1.94) | |
DP, dry polar; MP, moist polar; DIS, days in sequence