Table 1.
Sociodemographic and clinical characteristics, symptoms of psychological distress, social support, personality type D and self-reported health-related quality of life across Slovak and Dutch CABG patient samples.
| Patient characteristics (total) | Dutch (112) | Slovak (114) | P value* | 95% CI |
|---|---|---|---|---|
| Age (mean±SD) | 64.12±9.14 | 58.18±6.03 | 0.001§ | 3.9–7.9 |
| Male gender | 88 (78.9%) | 92 (80.7%) | ns | |
| Educational level (N, %) | ||||
| Lower education | 87 (77.7%) | 87 (76.3%) | ns | |
| Higher education | 25 (22.3%) | 27 (23.7%) | ||
| Employment (not employed) (N, %) | 74 (66.1%) | 77 (67.5%) | ns | |
| Smoking (current smokers) (N, %) | 24 (21.4%) | 40 (35.1%) | 0.0 β | 12.1–24.9%∆ |
| Functional status (N, %) | ||||
| Class I–II | 36 (32.1%) | 58 (50.9%) | 0.003β | 5.9–30.7%∆ |
| Class III–IV | 76 (67.9%) | 56 (49.1%) | ||
| LVEF (N, %) | 0.001# | |||
| <30–≤50% | 23 (17.0%) | 84 (73.6%) | 38.5–60.4%∆ | |
| >50% | 89 (79.4%) | 30 (26.4%) | 41.0–62.8%∆ | |
| COPD (N, %) | 9 (8.0%) | 11 (9.6%) | ns | |
| History of CHD (N, %) | 81 (72.3%) | 106 (93.0%) | 0.001β | 11.0–30.2%∆ |
| Previous myocardial infarction (N, %) | 34 (30.3%) | 64 (56.1%) | 0.001β | 12.9–37.5%∆ |
| Hypertension (N, %) | 43 (38.4%) | 94 (82.4%) | 0.001β | 31.8–54.4%∆ |
| Diabetes mellitus (N, %) | 21 (18.7%) | 43 (37.7%) | 0.01β | 7.25–30.0%∆ |
| Personality type D (N, %) | 29 (25.9%) | 40 (35.1%) | ns | −2.81–20.8% NS |
| Anxiety (mean±SD) | 6.28±4.20 | 7.04±3.76 | ns | |
| Depression (mean±SD) | 5.01±3.73 | 4.96±3.16 | ns | |
| Social support (mean±SD) | 47.93±9.73 | 65.38±11.94 | 0.001§ | 14.44–20.43 |
| PCS (mean±SD) | 39.43±9.53 | 34.19±9.21 | 0.001§ | 2.71–7.76 |
| MCS (mean±SD) | 48.27±11.09 | 47.02±8.71 | ns | |
CABG: coronary artery bypass grafting; CI: confidence interval; LVEF: left ventricular ejection fraction; COPD: chronic obstructive pulmonary disease; CHD: coronary heart disease; PCS: physical health component summary; MCS: mental health component summary.
*
Significance of difference adjusted for age and gender.
∆
Difference between proportions test with continuity correction.
§
t-test.
#
chi square.
β
Fisher’s exact test.