Table 1.
Patients demographic characteristics
| Variable | Control group (n = 25) | Intervention group (n = 20) | P - value |
|---|---|---|---|
| Age, years, mean ± SD | 56.8 ± 11.2 | 56.6 ± 11 | 0.97 |
| Gender, number of patients | 0.5 | ||
| Male | 16 | 11 | |
| Female | 9 | 9 | |
| Weight, kg, mean ± SD | 61.6 ± 11.7 | 60.5 ± 12.9 | 0.6 |
| Surgery, number of patients | |||
| CABG | 4 | 3 | 0.94 |
| Cardiac value replacement | 17 | 13 | |
| Congenital heart disease | 4 | 4 | |
| Operative time, hours, mean ± SD | 3.3 ± 1.2 | 3.3 ± 0.7 | 0.96 |
| Cardiopulmonary bypass, number of patients | |||
| Yes | 19 | 14 | 0.7 |
| No | 6 | 6 | |
| APACHE II scores on admission, mean ± SD | 20 ± 3.1 | 21.2 ± 2.9 | 0.75 |
| Preoperative cardiac function score, number of patients | |||
| П | 3 | 3 | 0.6 |
| Ш | 21 | 17 | |
| IV | 1 | 0 | |
| Duration of mechanical ventilation, hours, mean ± SD | 22 ± 10.1 | 22.7 ± 9.5 | 0.8 |
| Length of ICU stay, hours, mean ± SD | 58.9 ± 20 | 53.0 ± 16 | 0.29 |
| Length of hospital stay, days, mean ± SD | 22.6 ± 10.8 | 20.7 ± 6.1 | 0.5 |
| Preoperative PSQI, mean ± SD | 7.5 ± 3.7 | 8.6 ± 4.5 | 0.3 |
| Discharge outcomes of hospital, number of patients | |||
| No death | 23 | 20 | 0.4 |
| mortality | 2 | 0 |
CABG, coronary artery bypass surgery; PSQI, Pittsburgh sleep quality index; APACHE, acute physiology and chronic health evaluation scoring system.