Table 1.
Balance comparisons of covariates between the PMV group and the non-PMV group after PSM.
| Variable | Before matching | After matching | ||||
|---|---|---|---|---|---|---|
| PMV group (n=52) | Non-PMV group (n=198) | P-value | PMV group (n=47) | Non-PMV group (n=47) | P-value | |
| Age (year) | 59.27 ± 7.88 | 57.51 ± 8.79 | 0.191 | 59.13 ± 8.13 | 58.13 ± 7.74 | 0.543 |
| Sex (male) | 36 (69.2) | 126 (63.6) | 0.452 | 31 (66.0) | 32 (68.1) | 0.826 |
| BMI (kg/m2) | 23.32 ± 2.97 | 24.44 ± 3.30 | 0.027 | 23.51 ± 2.90 | 23.08 ± 2.88 | 0.473 |
| Emergency admission (%) | 11 (21.2) | 40 (20.2) | 0.880 | 8 (17.0) | 7 (14.9) | 0.778 |
| PAH (%) | 21 (40.4) | 57 (28.8) | 0.108 | 18 (38.3) | 20 (42.6) | 0.674 |
| ACHD Complexity Classification (%) | 0.960 | 0.466 | ||||
| Mild | 36 (69.2) | 133 (67.2) | 32 (68.1) | 29 (61.7) | ||
| Moderate | 12 (23.1) | 49 (24.7) | 11 (23.4) | 10 (21.3) | ||
| Severe | 4 (7.7) | 16 (8.1) | 4 (8.5) | 8 (17.0) | ||
| Number of main coronary artery lesions (%) | 0.610 | 0.631 | ||||
| Single-branch lesion | 15 (28.8) | 70 (35.4) | 14 (29.8) | 18 (38.3) | ||
| Double-branch lesions | 13 (25.0) | 40 (20.2) | 12 (25.5) | 12 (25.5) | ||
| Triple-branch lesions | 24 (46.2) | 88 (44.4) | 21 (44.7) | 17 (36.2) | ||
| ASA Classification (%) | 0.032 | 0.489 | ||||
| 2 | 5 (9.6) | 21 (10.6) | 5 (10.6) | 4 (8.5) | ||
| 3 | 37 (71.2) | 166 (83.8) | 35 (74.5) | 40 (85.1) | ||
| 4 | 10 (19.2) | 11 (5.6) | 7 (14.9) | 3 (6.4) | ||
The results of continuous variables are expressed as mean ± standard deviation for those with normal distribution, and categorical data were expressed as numbers (%)
ACHD=adult congenital heart disease; ASA=American Society of Anesthesiologists; BMI=body mass index; PAH=pulmonary arterial hypertension; PMV=prolonged mechanical ventilation; PSM=propensity score matching