Parameter | Overall (n = 1347) | Incidence of nosocomial infection | ||||
---|---|---|---|---|---|---|
No | % /\( \overline {\mathrm{X}} \)± s | No | % | χ2 | p- value | |
Age, years | 58.6 ± 17.1 | |||||
Gender | ||||||
Male | 893 | 66.3 | 67 | 7.50 | 0.016 | 0.9 |
Female | 454 | 33.7 | 35 | 7.71 | ||
Admission diagnosis | ||||||
COPD | 524 | 38.90 | 31 | 5.92 | 8.438 | 0.038 |
Pneumonia | 552 | 40.98 | 43 | 7.79 | ||
Lung cancer | 156 | 11.58 | 21 | 13.46 | ||
Others | 115 | 8.54 | 7 | 6.09 | ||
ASIS class | ||||||
A | 221 | 16.41 | 9 | 4.07 | 49.42 | < 0.001 |
B | 575 | 42.69 | 27 | 4.7 | ||
C | 455 | 33.78 | 45 | 9.89 | ||
D | 73 | 5.42 | 13 | 17.81 | ||
E | 23 | 1.71 | 8 | 34.78 | ||
Years | ||||||
2013 | 431 | 32.00 | 31 | 7.19 | 0.213 | 0.795 |
2014 | 450 | 33.41 | 35 | 7.78 | ||
2015 | 466 | 34.60 | 36 | 7.73 | ||
RICU stay, days | ||||||
<10 | 775 | 57.54 | 19 | 2.45 | 134.998 | 0.000 |
10~30 | 445 | 33.04 | 33 | 7.42 | ||
30~60 | 72 | 5.35 | 21 | 29.2 | ||
≥ 60 | 55 | 4.08 | 29 | 52.7 |