Table 2 Descriptive statistics and cross-validation of pedestrian injuries among older people (n = 229)
| Â | Â | Subgroup 1 | Subgroup 2 | Subgroup 3 | Subgroup 4 | p value |
|---|---|---|---|---|---|---|
|  |  | (Proportion of lower socioeconomic status in the residential area < 35.21%) | (Proportion of lower socioeconomic status in the residential area > =35.21%) & (Road width < 5 m) | (Proportion of lower socioeconomic status in the residential area > =35.21%) & (Road width > 5 m) & (Aging rate in the residential area > 20.3%) | (Proportion of lower socioeconomic status in the residential place > = 35.21%) & (Road width > 5 m) & (Aging rate in the residential area < 20.3%) |  |
Proportion severely injured (%) | Â | 32.8 | 17.6 | 45.5 | 27.0 | Â |
|  |  | (n = 32) | (n = 68) | (n = 55) | (n = 74) |  |
Age (mean) | 74.69 | 74.90 | 75.98 | 74.51 | 0.6443 | |
Male (%) | Â | 34.4 | 30.9 | 32.7 | 35.1 | 0.9572 |
Time | 0:00–4:00 (%) | 3.1 | 1.5 | 0.0 | 1.4 | 0.2489 |
4:00–8:00 (%) | 12.5 | 20.6 | 12.7 | 10.8 |  | |
8:00–12:00 (%) | 12.5 | 33.8 | 27.3 | 24.3 |  | |
12:00–16:00 (%) | 15.6 | 7.4 | 23.6 | 14.9 |  | |
16:00–20:00 (%) | 40.6 | 30.9 | 30.9 | 36.5 |  | |
20:00–24:00 (%) | 15.6 | 5.9 | 5.5 | 12.2 |  | |
Season | Spring (%) | 15.6 | 30.9 | 45.5 | 27.0 | 0.1017 |
Summer (%) | 31.3 | 20.6 | 21.8 | 24.3 | Â | |
Fall (%) | 28.1 | 19.1 | 7.3 | 14.9 | Â | |
Winter (%) | 25.0 | 29.4 | 25.5 | 33.8 | Â | |
Network distance travelled (mean) (unit:m) | 1103 | 796 | 1690 | 1028 | 0.0545 | |
National road (%) | 9.4 | 0.0 | 29.1 | 32.4 | <0.0001 | |
Road width more than 5Â m (%) | 50.0 | 0.0 | 100.0 | 100.0 | <0.0001 | |
Densely inhabited district (%) | 18.8 | 80.9 | 78.2 | 89.2 | <0.0001 | |
Aging rate in the residential area (%) | 24.2 | 18.3 | 23.0 | 16.4 | <0.0001 | |
Proportion of lower socioeconomic status in the census enumeration district (mean [SD]) (%) | 32.8 | 42.1 | 41.1 | 42.9 | <0.0001 | |