Frequency of sauna bathing (sessions/week) | Events/total | Model 1 | Â | Model 2 | Â | Model 3 | Â | Model 4* | Â |
---|---|---|---|---|---|---|---|---|---|
HR (95% CI) | P value | HR (95% CI) | P value | HR (95% CI) | P value | HR (95% CI) | P value | ||
Overall | |||||||||
 Once | 63/455 | Ref |  | Ref |  | Ref |  | Ref |  |
 2–3 | 110/1028 | 0.71 (0.52 to 0.98) | 0.035 | 0.78 (0.57 to 1.08) | 0.133 | 0.77 (0.56 to 1.07) | 0.121 | 0.75 (0.52 to 1.08) | 0.120 |
 4–7 | 8/205 | 0.30 (0.14 to 0.64) | 0.002 | 0.36 (0.17 to 0.76) | 0.007 | 0.36 (0.17 to 0.77) | 0.008 | 0.23 (0.08 to 0.65) | 0.005 |
Men | |||||||||
 Once | 39/177 | Ref |  | Ref |  | Ref |  | Ref |  |
 2–3 | 71/512 | 0.61 (0.41 to 0.90) | 0.013 | 0.70 (0.47 to 1.03) | 0.073 | 0.69 (0.46 to 1.03) | 0.069 | 0.68 (0.43 to 1.09) | 0.111 |
 4–7 | 8/132 | 0.33 (0.15 to 0.71) | 0.005 | 0.39 (0.18 to 0.84) | 0.016 | 0.39 (0.18 to 0.84) | 0.016 | 0.26 (0.09 to 0.75) | 0.013 |
Women | |||||||||
 Once | 24/278 | Ref |  | Ref |  | Ref |  | Ref |  |
 2–3 | 39/516 | 0.95 (0.57 to 1.57) | 0.830 | 1.03 (0.59 to 1.77) | 0.929 | 1.00 (0.57 to 1.74) | 0.997 | 0.88 (0.48 to 1.60) | 0.676 |
 4–7 | 0/73 | NE |  | NE |  | NE |  | NE |  |