Table 3 Postoperative outcomes according to different BMI level before and after propensity score matching
Demographics | Raw Cohort (N = 645) | PSM Matched Cohort (N = 282) | ||||
|---|---|---|---|---|---|---|
LS (n = 256) | OP (n = 389) | P-value * | LS (N = 141) | OP (N = 141) | P-value * | |
Major complications, No. (%) | ||||||
 Hemorrhage | 17(6.64) | 19(4.88) | 0.342 | 10(7.09) | 5(3.55) | 0.185 |
 Biliary fistula | 19(7.42) | 29(7.46) | 0.988 | 14(9.93) | 7(4.96) | 0.112 |
 Abdominal abscess | 20(7.81) | 47(12.08) | 0.082 | 17(12.06) | 17(12.06) |  > 0.999* |
 Hepatic insufficiency | 3(1.17) | 9(2.31) | 0.294 | 2(1.42) | 4(2.84) | 0.684* |
 Gastrointestinal fistula | 1(0.39) | 4(1.03) | 0.653 | 1(0.71) | 4(2.84) | 0.371* |
 Incision infection | 4(1.56) | 16(4.11) | 0.068 | 3(2.13) | 8(5.67) | 0.124 |
 Pneumonia | 16(6.25) | 28(7.20) | 0.640 | 12(8.51) | 9(6.38) | 0.496 |
 Renal failure | 3(1.17) | 10(2.57) | 0.216 | 3(2.13) | 5(3.55) | 0.723* |
 Heart failure | 2(0.78) | 14(3.60) | 0.024 | 2(1.42) | 3(2.13) |  > 0.99* |
 ARDS | 3(1.17) | 9(2.31) | 0.294 | 3(2.13) | 3(2.13) |  > 0.99* |
 CD stage ≥ III, No. (%) | 31(12.11) | 89(22.88) | 0.001 | 26(18.44) | 32(22.70) | 0.377 |
 Reoperation, No. (%) | 5(1.95) | 7(1.80) | 0.888 | 4(2.84) | 4(2.84) |  > 0.99* |
 Death (30d), No. (%) | 8(3.13) | 24(6.17) | 0.082 | 7(4.96) | 12(8.51) | 0.235 |
 Death (90d), No. (%) | 12(4.69) | 34(8.74) | 0.050 | 9(6.38) | 15(10.64) | 0.200 |
 Time of off-bed activity(d), median(IQR) | 4.00(3.00 ~ 7.00) | 5.00(3.00 ~ 7.00) | 0.406 | 4.00(3.00 ~ 7.00) | 4.00(3.00 ~ 6.00) | 0.649 |
PDTK(d), median(IQR) | 8.00(5.00 ~ 11.00) | 9.00(6.00 ~ 14.00) |  < 0.001 | 8.00(5.00 ~ 12.00) | 9.00(5.00 ~ 13.00) | 0.225 |
 Time of ICU(d), median(IQR) | 0.00(0.00 ~ 2.00) | 0.00(0.00 ~ 1.00) | 0.137 | 0.00(0.00 ~ 1.00) | 0.00(0.00 ~ 1.00) | 0.762 |
 LOS (d), median(IQR) | 13.00(10.00 ~ 18.00) | 15.00(12.00 ~ 21.00) |  < 0.001 | 14.00(11.00 ~ 19.00) | 15.00(12.00 ~ 23.00) | 0.001 |