Table 6 Comparison of clinical outcomes among different BMI groups in patients undergoing isolated CABG with/without CPB. Abbreviations: PSM, propensity score matching; BMI, body mass index; MD, mean difference; OR, odds ratio; CI, confidence interval; SD, standard deviation
Variables | PSM | Logistic | ||||||
|---|---|---|---|---|---|---|---|---|
BMI<18.5 kg/m2 | 18.5 ≤ BMI < 24 kg/m2 | MD or OR (95%CI) | p value | BMI<18.5 kg/m2 | 18.5 ≤ BMI < 24 kg/m2 | OR (95%CI) | p value | |
On-pump group (n = 61) | ||||||||
On-pump group | n = 61 | n = 61 |  |  | n = 61 | n = 3585 |  |  |
Postoperative complications, n (%) | Â | Â | Â | Â | Â | Â | Â | Â |
Prolonged mechanical ventilation | 3 (4.9) | 3 (4.9) | 2.073 (0.149 ~ 28.839) | 0.587 | 3 (4.9) | 75 (2.1) | 1.065 (0.247 ~ 4.595) | 0.932 |
Re-intubation | 3 (4.9) | 3 (4.9) | 2.907 (0.239 ~ 35.321) | 0.402 | 3 (4.9) | 21 (0.6) | 5.365 (1.159 ~ 24.833) | 0.032 |
Re-operation due to major hemorrhage or cardiac tamponade | 2 (3.3) | 3 (4.9) | 3.007 (0.249 ~ 36.261) | 0.386 | 2 (3.3) | 34 (0.9) | 4.650 (1.019 ~ 21.210) | 0.047 |
Acute kidney injury | 2 (3.3) | 4 (6.6) | 0.118 (0.001 ~ 48.384) | 0.486 | 2 (3.3) | 45 (1.3) | 0.727 (0.121 ~ 4.366) | 0.728 |
30-day all-cause mortality | 2 (3.3) | 0 (0) | / | / | 2 (1.6) | 5 (0.1) | 10.325 (2.011 ~ 53.020) | 0.005 |
Hospital length of stay (d), mean ± SD | 16.57 ± 8.20 | 15.75 ± 4.17 | 0.820 (-1.521 ~ 3.161) | 0.488 | 16.57 ± 8.20 | 15.77 ± 5.47 | / | / |
Off-pump group | n = 69 | n = 69 |  |  | n = 69 | n = 3905 |  |  |
Postoperative complications, n (%) | Â | Â | Â | Â | Â | Â | Â | Â |
Re-operation due to major hemorrhage or cardiac tamponade | 1 (1.4) | 0 (0) | / | / | 1 (1.4) | 11 (0.3) | 6.636 (0.809 ~ 54.435) | 0.078 |
Hospital length of stay (d), mean ± SD | 15.55 ± 6.10 | 13.83 ± 4.63 | 1.725 (-0.099 ~ 3.549) | 0.064 | 15.55 ± 6.10 | 15.41 ± 5.33 | / | / |