Table 1 Hospital days and body weight of the subjects with and without HAI in univariate analysis, continuous variables, aged 60+, in Beijing, China
Control group N = 58752 | HAI group N = 1580 | t | P | |
|---|---|---|---|---|
M ± s.d | M ± s.d | |||
Total hospital days (days) | 9.16 ± 5.84 | 21.81 ± 10.45 | 47.93 | < 0.001 |
Hospital days before HAI (days) | 9.16 ± 5.84 | 10.31 ± 6.95 | 6.37 | < 0.001 |
Body weight (km) | 66.92 ± 11.69 | 64.46 ± 11.59 | 6.21 | < 0.001 |