Table 1 Baseline characteristics of the surgical patients, according to a nonfixed nurse team and fixed nurse team, before and after propensity score matching
Variable | Unmatched | Matched | ||||
|---|---|---|---|---|---|---|
Nonfixed nurse team (N=2474) | Fixed nurse team (N=2891) | SMD | Nonfixed nurse team (N=2397) | Fixed nurse team (N=2397) | SMD | |
Female, n (%) | 1147 (46.4) | 1331 (46.0) | 0.006 | 1119 (46.7) | 1104 (46.1) | 0.013 |
Age, mean (SD) | 56.46 (17.77) | 55.82 (18.47) | 0.035 | 56.52 (17.84) | 55.80 (17.90) | 0.041 |
Diabetes, n (%) | 230 (9.3) | 301 (10.4) | 0.037 | 224 (9.3) | 196 (8.2) | 0.041 |
Hypertension, n (%) | 409 (16.5) | 515 (17.8) | 0.034 | 395 (16.5) | 383 (16.0) | 0.014 |
Surgical wound classification, n (%) a | Â | Â | 0.079 | Â | Â | 0.018 |
Class I (clean) | 2255 (91.1) | 2255 (91.1) | Â | 2212 (92.3) | 2220 (92.6) | Â |
Class II (clean-contaminated) | 101 (4.1) | 101 (4.1) | Â | 68 (2.8) | 69 (2.9) | Â |
Class III (contaminated) | 118 (4.8) | 127 (4.4) | Â | 117 (4.9) | 108 (4.5) | Â |
Surgery type, n (%) | Â | Â | 0.111 | Â | Â | 0.017 |
Bone and Bones | 598 (24.2) | 747 (25.8) | Â | 590 (24.6) | 604 (25.2) | Â |
Joints | 662 (26.8) | 882 (30.5) | Â | 661 (27.6) | 657 (27.2) | Â |
Spine | 909 (36.7) | 941 (32.5) | Â | 862 (36.0) | 865 (36.1) | Â |
Others | 305 (12.3) | 321 (11.1) | Â | 284 (11.8) | 276 (11.5) | Â |