Table 6 Results of Cox proportional hazards regression analysis
Number (N) | Mortality (%) | Crude mortality rate (95% CI) | Adj. mortality rate (95% CI)* | P value** | |
|---|---|---|---|---|---|
Weekday (From 7.00 am on Monday to 2.59 p.m. on Friday) | |||||
Daytime (7.00 a.m. – 2.59 p.m.) | 9257 | 2.8% | 1 (reference) | 1 (reference) | |
Evening (3.00 p.m. – 10.59 p.m.) | 4371 | 3.0% | 1.08 (0.88–1.34) | 1.20 (0.95–1.52) | 0.131 |
Nighttime (11.00 p.m. – 6.59 a.m.) | 972 | 3.5% | 1.27 (0.89–1.82) | 0.87 (0.57–1.32) | 0.514 |
Weekend (From 3.00 p.m. on Friday to 6.59 a.m. on Monday) | |||||
Daytime (7.00 a.m. – 2.59 p.m.) | 2234 | 3.4% | 1.25 (0.97–1.61) | 1.08 (0.80–1.46) | 0.603 |
Evening (3.00 p.m. – 10.59 p.m.) | 3526 | 3.3% | 1.20 (0.96–1.49) | 1.32 (1.03–1.70) | 0.027 |
Nighttime (11.00 p.m. – 6.59 a.m.) | 1376 | 3.5% | 1.27 (0.93–1.72) | 1.29 (0.90–1.84) | 0.169 |