Table 1.
Baseline characteristics of recruited patients.
| Characteristics | Control group (n=60) | Experimental group (n=60) | t or χ2 | P |
|---|---|---|---|---|
| Sex, n (%) | ||||
| Male | 36 (60.0) | 38 (63.3) | 0.14 | 0.85 |
| Female | 24 (40.0) | 22 (36.7) | ||
| Age (mean ±SD y) | 56.67±10.39 | 55.32±9.84 | 0.73 | 0.47 |
| Length of operation (mean ±SD min) | 213.68±39.06 | 215.05±33.92 | −0.20 | 0.84 |
| Braden score on admission (mean ±SD) | 11.72±1.53 | 12.033±1.48 | −1.15 | 0.25 |
| Body mass index (mean ±SD) | 19.89±2.27 | 20.63±2.63 | −1.31 | 0.19 |
| Diabetes mellitus | ||||
| Yes, n (%) | 14 (23.3) | 15 (25.0) | 0.45 | 0.83 |
| No, n (%) | 46 (76.7) | 45 (75.0) | ||
| Operation, n (%) | ||||
| MVR | 14 (23.3) | 14 (23.3) | 0.31 | 0.99 |
| AVR | 12 (20.0) | 12 (20.0) | ||
| DVR | 15 (25.0) | 13 (21.7) | ||
| CABG | 11 (18.3) | 13 (21.7) | ||
| Bentall’s | 8 (13.3) | 8 (13.3) | ||
MVR – mitral valve replacements; AVR – aortic valve replacements; DVR – double valve replacements; CABG – coronary artery bypass surgery. Braden score, a score >16 indicates low risk; 15–16 indicates mild risk; 12–14 indicates moderate risk; ≤11 indicates high risk.