Table 1.
Patients baseline characteristics and surgical factors
| Skin disinfection (chlorhexidine 5 mg/mL in 70 % ethanol) | 36 °C | 20 °C |
|---|---|---|
| Characteristics | N = 108 | N = 112 |
| Age (years), mean (SD) | 72 (11.9) | 74 (12.5) |
| Body mass index (BMI), mean (SD) | 27 (4.5) | 27 (5.4) |
| Length of surgery, minutes, median (IQR) | 33 (30) | 34 (32) |
| Colony forming units, median (IQR) | 1180 (4690) | 2080 (4770) |
| Male, % | 55 | 57 |
| Eczema, % | 6 | 5 |
| Incision site hair shorten, % | 31 | 26 |
| Diabetes, % | 14 | 18 |
| Bacterial skin growth, % | 95 | 96 |
| Type of surgery | ||
| Device change, % | 45.4 | 46.4 |
| DDD, % | 35.2 | 36.6 |
| VVI, % | 6.5 | 6.3 |
| ICD, % | 1.9 | 3.6 |
| CRT, % | 1.9 | 1.8 |
| Other, % | 9.2 | 5.4 |
DDD, dual chamber rate adaptive pacemaker. VVI, single ventricular rate adaptive pacemaker. ICD, implantable cardioverter-defibrillator. CRT, cardiac resynchronization therapy. Continuous and dichotomous variables were analysed using t-test and Mann Whitney U test, no significant differences between groups
Comparison of patients’ characteristics and the surgical factors within each group (disinfectant at 36 °C or 20 °C, respectively)