Characteristics of patients participating in the study in the control group and intervention group
| Control n=506 | Intervention n=466 | |
| Gender | ||
| Male % (95% CI) | 71.5 (67.5 to 75.4) | 72.3 (67.4 to 75.9) |
| Female % (95% CI) | 28.5 (24.5 to 32.4) | 27.7 (23.6 to 31.7) |
| Age (year) | ||
| Mean/SD (95% CI) | 67.6/10.9 (66.9 to 68.5) | 67.4/10.5 (66.4 to 68.4) |
| Surgery | ||
| CABG % (95% CI) | 38.1 (33.8 to 42.7) | 31.5 (27.3 to 35.1) |
| CABG+valve % (95% CI) | 9.7 (7 to 12) | 7.7 (5.3 to 10.1) |
| Valve % (95% CI) | 45.6 (41.2 to 49.9) | 55.5 (51.0 to 60.0) |
| Other % (95% CI) | 6.6 (4.4 to 8.7) | 7.7 (5.3 to 10.1) |
| Perfusion time (min) | ||
| Mean/SD (95% CI) | 116.3/37.4 (112.9 to 119.6) | 114.8/42.5 (110.9 to 118.7) |
| Nutrition, BMI (m2) | ||
| Mean/SD (95% CI) | 27.8/4.7 (27.4 to 28.2) | 28.0/5.6 (27.5 to 28.5) |
| Smokers % (95% CI) | 14.7 (11.6 to 17.8) | 14.2 (11.0 to 17.4) |
| Daily intake of alcohol % (95% CI) | 5.0 (3.1 to 6.9) | 4.9 (2.9 to 6.8) |
| Diabetes mellitus | ||
| Type I (95% CI) | 1.4 (0.4 to 2.4) | 1.5 (0.4 to 2.6) |
| Type II (95% CI) | 19.4 (15.9 to 22.8) | 18.0 (14.4 to 21.5) |
| COPD (95% CI) | 2.9 (1.4 to 4.3) | 6.0 (3.8 to 8.1) |
| LOS (95% CI) | 10.7/7.6 (10.0 to 11.6) | 8.6/4.7 (8.1 to 9.0) |
BMI, body mass index; CABG, coronary artery bypass graft; COPD, chronic obstructive pulmonary disease; LOS, length of stay.