Multivariable logistic regression analysis for on-scene time over 30 min
| OR (95% CI) | p Value | |
|---|---|---|
| Age (years) | 1.00 (0.99 to 1.01) | 0.32 |
| Gender | ||
| Male | 0.92 (0.80 to 1.05) | 0.22 |
| Disease name as diagnosed at emergency departments | ||
| Cardiopulmonary arrest | 0.30 (0.24 to 0.38) | <0.001 |
| Trauma | 1.19 (0.94 to 1.51) | 0.15 |
| Intoxication | 1.82 (1.15 to 2.87) | 0.011 |
| Other external cause | 0.58 (0.33 to 1.02) | 0.058 |
| Central neurological disease | 0.48 (0.37 to 0.61) | <0.001 |
| Respiratory disease | 0.63 (0.49 to 0.80) | <0.001 |
| Cardiovascular disease | 0.37 (0.28 to 0.48) | <0.001 |
| Gastrointestinal disease | 0.68 (0.51 to 0.91) | 0.010 |
| Minor disease | 1.65 (1.06 to 2.57) | 0.023 |
| Time of the day | ||
| Night shift | 1.15 (0.96 to 1.36) | 0.068 |
| Evening shift | 0.98 (0.84 to 1.15) | 0.24 |
| Day shift | 1.00 | |
| Phone calls to hospitals | 2.57 (2.43 to 2.72) | <0.001 |
| Geographical area | ||
| North | 3.20 (2.65 to 3.87) | <0.001 |
| Middle | 2.20 (1.85 to 2.61) | 0.003 |
| South | 1.00 | |