Table 5 Analysis of matched factors and outcomes between study and control groups.
From: Heart transplantation: comparing the impact of modified heart preservation with conventional methods
Variable | Variable level | Study (%) | Control (%) | Statistic (χ²) | P-value |
|---|---|---|---|---|---|
Survival status | Alive | 73 (75.26) | 75 (77.32) | 0.114 | 0.736 |
Deceased | 24 (24.74) | 22 (22.68) | Â | Â | |
Gender | Male | 77 (79.38) | 80 (82.47) | 0.301 | 0.584 |
Female | 20 (20.62) | 17 (17.53) | Â | Â | |
Disease type | CAD | 14 (14.43) | 14 (14.43) | – | 0.974 |
CM | 75 (77.32) | 77 (79.38) | Â | Â | |
Others | 5 (5.15) | 4 (4.12) | Â | Â | |
VHD | 3 (3.09) | 2 (2.06) | Â | Â | |
Gender | Male | 84 (86.60) | 78 (80.41) | 1.347 | 0.246 |
Female | 13 (13.40) | 19 (19.59) | Â | Â | |
Combined transplant organ | No | 97 (100.0) | 96 (98.97) | – | 1 |
Yes | 0 (0.00) | 1 (1.03) | Â | Â | |
Donor cause of death | Head injury | 47 (50.00) | 55 (56.70) | 3.166 | 0.205 |
Cerebrovascular disease | 37 (39.36) | 38 (39.18) | Â | Â | |
Other | 10 (10.64) | 4 (4.12) | Â | Â | |
Recipient age | 60 ≤ Age | 20 (20.62) | 22 (22.68) | 0.786 | 0.853 |
50 ≤ Age < 60 | 33 (34.02) | 34 (35.05) |  |  | |
18 ≤ Age < 50 | 39 (40.21) | 34 (35.05) |  |  | |
Age < 18 | 5 (5.15) | 7 (7.22) |  |  | |
Donor age | 45 ≤ Age | 29 (29.90) | 19 (19.59) | 6.087 | 0.048 |
25 ≤ Age < 45 | 47 (48.45) | 64 (65.98) |  |  | |
Age < 25 | 21 (21.65) | 14 (14.43) |  |  | |
Recipient BMI | BMI < 20 | 29 (29.90) | 21 (21.65) | 6.525 | 0.089 |
20 ≤ BMI < 23 | 28 (28.87) | 22 (22.68) |  |  | |
23 ≤ BMI < 25 | 19 (19.59) | 17 (17.53) |  |  | |
25 ≤ BMI | 21 (21.65) | 37 (38.14) |  |  | |
Donor BMI | BMI < 20 | 13 (13.68) | 12 (12.37) | 24.1 | 0 |
20 ≤ BMI < 23 | 54 (56.84) | 28 (28.87) |  |  | |
23 ≤ BMI < 25 | 22 (23.16) | 28 (28.87) |  |  | |
25 ≤ BMI | 6 (6.32) | 29 (29.90) |  |  | |
Preoperative cardiac ultrasound EF (M-mode) | < 20 | 16 (16.49) | 9 (9.28) | 9.688 | 0.021 |
20–25 | 24 (24.74) | 44 (45.36) |  |  | |
25–30 | 27 (27.84) | 19 (19.59) |  |  | |
30≤ | 30 (30.93) | 25 (25.77) |  |  | |
History of cardiac surgery | No | 86 (88.66) | 87 (89.69) | 0.053 | 0.817 |
Yes | 11 (11.34) | 10 (10.31) | Â | Â | |
History of diabetes | No | 95 (97.94) | 94 (96.91) | – | 1 |
Yes | 2 (2.06) | 3 (3.09) | Â | Â | |
Chronic kidney disease | No | 96 (98.97) | 96 (98.97) | – | 1 |
Yes | 1 (1.03) | 1 (1.03) | Â | Â | |
Preoperative blood purification or dialysis | No | 97 (100.0) | 94 (96.91) | – | 0.246 |
Yes | 0 (0.00) | 3 (3.09) | Â | Â | |
Preoperative LVAD | No | 97 (100.0) | 96 (98.97) | – | 1 |
Yes | 0 (0.00) | 1 (1.03) | Â | Â | |
IABP | No | 96 (98.97) | 87 (89.69) | 7.806 | 0.005 |
Yes | 1 (1.03) | 10 (10.31) | Â | Â | |
ECMO | No | 97 (100.0) | 86 (88.66) | 11.661 | 0.001 |
Yes | 0 (0.00) | 11 (11.34) | Â | Â | |
Mechanical ventilation | No | 95 (97.94) | 85 (87.63) | 7.698 | 0.006 |
Yes | 2 (2.06) | 12 (12.37) | Â | Â | |
Respiratory system complications | No | 50 (51.55) | 90 (92.78) | 41.058 | 0 |
Yes | 47 (48.45) | 7 (7.22) | Â | Â | |
Neurological complications | No | 91 (94.79) | 92 (94.85) | – | 1 |
Yes | 5 (5.21) | 5 (5.15) | Â | Â | |
Renal complications | No | 90 (93.75) | 89 (91.75) | 0.286 | 0.593 |
Yes | 6 (6.25) | 8 (8.25) | Â | Â | |
Diabetes mellitus | No | 88 (93.62) | 97 (100.0) | – | 0.013 |
Yes | 6 (6.38) | 0 (0.00) | Â | Â | |
Positive sputum culture | No | 50 (52.63) | 85 (87.63) | 28.162 | 0 |
Yes | 45 (47.37) | 12 (12.37) | Â | Â | |
Positive blood culture | No | 88 (93.62) | 92 (94.85) | 0.133 | 0.716 |
Yes | 6 (6.38) | 5 (5.15) | Â | Â | |
Septic shock | No | 89 (97.80) | 95 (97.94) | – | 1 |
Yes | 2 (2.20) | 2 (2.06) | Â | Â | |
Acute rejection reaction | No | 96 (98.97) | 97 (100.0) | – | 1 |
Yes | 1 (1.03) | 0 (0.00) | Â | Â |
