Table 5 Comparison of length of stay between the matched pairs (Days)
Variable | Number of Pairs (n = 175) | Difference of length of stay in pairs Median (range) | Statistics (Z) | P |
|---|---|---|---|---|
Classification of the number of hospital beds | ||||
1 | 29 | 4.0(−8~ 107) | 3.136 | 0.002 |
2 | 47 | 4.0(−30~ 52) | 2.131 | 0.033 |
3 | 49 | 6.0(−56~ 134) | 2.716 | 0.005 |
4 | 50 | 6.0(−94~ 52) | 2.045 | 0.041 |
Classification of GDP | ||||
1 | 19 | 5.0(−23~ 69) | 2.439 | 0.015 |
2 | 71 | 3.0(−94~ 134) | 1.712 | 0.087 |
3 | 37 | 4.0(−30~ 88) | 2.106 | 0.035 |
4 | 48 | 7.0(−39~ 107) | 3.847 | 0.000 |
HAIs sites | ||||
Upper respiratory | 23 | 3.0(−21~ 14) | − 2.236 | 0.026 |
Blood related | 5 | 6.0(−22~ 20) | −0.135 | 0.893 |
Superficial incision | 20 | 10.0(−3~ 107) | −3.680 | 0.000 |
Organ lacunar | 2 | 4.5(3~ 6) | −1.342 | 0.180 |
Deep incision | 6 | 12.0(−10~ 52) | − 1.802 | 0.072 |
Intra-abdominal tissue | 1 | 5.0(5~ 5) | / | / |
Urinary | 23 | 6.0(−13~ 88) | −2.480 | 0.013 |
Skin soft-tissue | 12 | 1.0(−14~ 32) | 0.157 | 0.875 |
Lower respiratory | 76 | 5.0(−94~ 134) | −2.439 | 0.015 |
Gastrointestinal | 6 | 1.0(−22~ 54) | −0.674 | 0.500 |
Other | 1 | 11.0(11~ 11) | / | / |