Table 4.
Patient Demographic and Clinical Characteristics by Admission Time
| Total (n=35 685) | |||||
|---|---|---|---|---|---|
| Working‐Hour | Off‐Hour | P Value* | Nighttime | P Value* | |
| Number, % | 15 084 (42.3) | 16 908 (47.4) | 3693 (10.4) | ||
| Male, % | 54.7 | 52.8 | 0.001 | 54.6 | 0.957 |
| Age mean (SD) | 72.4 (13.3) | 71.8 (13.5) | <0.001 | 68.3 (14.3) | <0.001 |
| Comorbidity, % | |||||
| Hypertension | 74.8 | 77.2 | <0.001 | 77.8 | <0.001 |
| Diabetes mellitus | 24.9 | 23.8 | 0.015 | 24.2 | 0.329 |
| Hyperlipidemia | 29.5 | 26.5 | <0.001 | 26.1 | <0.001 |
| Current/past smoking history (n=30 179) (%) | 30 | 28.3 | 0.001 | 31.3 | 0.191 |
| Japan Coma Scale, % | |||||
| 0 | 38.4 | 32.1 | <0.001 | 29.2 | <0.001 |
| 1‐digit code | 37.7 | 37.6 | 33.9 | ||
| 2‐digit code | 12.4 | 14.6 | 15.7 | ||
| 3‐digit code | 11.6 | 15.8 | 21.3 | ||
| Emergency admission by ambulance (%) | 54.2 | 69.9 | <0.001 | 81.4 | <0.001 |
*
Off‐hour and nighttime were compared with working‐hours.