Table 2.
Characteristics of patients in different periods
| P1 (pre-epidemic) | P2 (early epidemic) | P3 (peak epidemic) | P4 (late epidemic) | p value | |
|---|---|---|---|---|---|
| Gender, male, % | 52.0% | 52.6% | 53.6% | 53.6% | p = .001 |
| Gender, the past three years, male, % | 53.1% | 52.1% | 52.0% | 52.4% | |
| Age, year, mean ± SD | 41.71 ± 26.79 | 43.18 ± 25.76 | 46.28 ± 23.85 | 46.76 ± 24.23 | p < .001 |
| Age, the past 3 years, year, mean ± SD | 41.61 ± 26.94 | 42.78 ± 26.83 | 42.66 ± 26.89 | 42.55 ± 26.61 | |
| Triage level I and level II, % | 20.0% | 19.5% | 19.3% | 19.3% | p = .311 |
| Triage level I and level II, %, the past 3 years | 27.6% | 26.1% | 25.9% | 23.9% | |
| Admission rate, % | 27.6% | 27% | 30.8% | 32.6% | p < .001 |
| Admission, rate, the past 3 years, % | 28.5% | 25.5% | 27.3% | 26.9% | |
| Length of stay, mins, median(IQR) | 152.94 (83.60–442.96) | 139.57 (75.06–377.94) | 151.32 (76.08–483.20) | 167.47 (84.23–579.81) | p = .01 |
| Length of stay, the past 3 years, median(IQR) | 138.97 (73.32–404.5) | 134.59 (71.57–385.03) | 141.93 (74.53–423.27) | 138.18 (72.2–405.23) | |
| Average OHCA number per day | 0.93 ± 0.96 | 1.48 ± 1.05 | 0.96 ± 1.02 | 0.5 ± 0.86 | p = .002 |
OHCA: Out-of-hospital cardiac arrest; SD: standard deviation; IQR: Interquartile range.