Multivariable analysis for total emergency medical services time before the disaster and after repopulation
| Before disaster | After repopulation | ||||
| Estimates† (95% CI) | P value‡* | Estimates (95% CI) | P value | ||
| Constant§ | 13.3 (4.2 to 22.8) | 0.003** | 38.1 (30.0 to 46.6) | <0.001*** | |
| Continuous variable | |||||
| Age | 0.1 (0.0 to 0.2) | 0.045* | 0.1 (0.0 to 0.1) | 0.21 | |
| Number of hospitals called | 5.1 (3.5 to 6.8) | <0.001*** | 6.7 (5.1 to 8.5) | <0.001*** | |
| Distance (per 10 km) | 10.1 (8.7 to 11.5) | <0.001*** | 8 (7.0 to 9.0) | <0.001*** | |
| Categorical variable | Reference | ||||
| Sex (Male) | Female | 3.3 (−0.3 to 7.0) | 0.073 | −3.4 (−7.3 to 0.5) | 0.087 |
| Need for hospitalisation (+) | (-) | 1.3 (−2.7 to 5.2) | 0.52 | −1.9 (−5.8 to 2.0) | 0.34 |
| Time of day | |||||
| Daytime (8:00 am–3:59 pm) | (Reference) | ||||
| Evening (4:00 pm–23:59 pm) | Daytime | 2.2 (−2.0 to 6.5) | 0.31 | 7.8 (3.4 to 12.3) | <0.001*** |
| Morning (0:00 pm–7:59 am) | Daytime | 3.8 (−1.3 to 9.1) | 0.16 | 12.9 (7.8 to 18.2) | <0.001*** |
| Weekends or holidays | Weekdays | 5.9 (2.0 to 9.8) | 0.004** | −0.5 (−4.5 to 3.6) | 0.81 |
| Snow accumulation (+) | (-) | −1.4 (−11.6 to 11.9) | 0.8 | 132.1 (98.5 to 173.4) | <0.001*** |
†Minutes.
‡Significance codes: ***<0.001, **<0.01, *<0.05.
§Constant: The value at which the regression line crosses the y-axis.