Table 4.
Comparisons of operative time, hospital stay, and early and late complication between PRYGB and RRYGB
| PRYGB | RRYGB | Adjusted | P-value | |||
|---|---|---|---|---|---|---|
|
n = 504 n |
% |
n = 150 n |
% | |||
| Operative time (min) | 42.6 | (0.45) | 180.1 | (4.89) |
MD = − 137.5 (− 147.1, − 127.8) |
(< .001) |
| Hospital stay (day) | 2.0 | (0.01) | 2.0 | (0.01) |
MD = − 0.03 (− 0.05, 0.001) |
(.060) |
| Early complications | 41 | 8.1% | 22 | 14.7% |
OR = 0.47 (0.25, 0.893) |
(.021) |
| UTI | 15 | 2.9% | 6 | 4% | ||
| Pneumonia | 3 | 0.59% | 3 | 2% | ||
| Wound infection | 2 | 0.39% | 1 | 0.67% | ||
| Melena | 9 | 1.79% | 3 | 2% | ||
| Bleeding from port site | 4 | 0.79% | 1 | 0.67% | ||
| Bleeding from omentum | 1 | 0.19% | 2 | 1.33% | ||
| MVO | 4 | 0.79% | 3 | 2% | ||
| DVT | 1 | 0.19% | 1 | 0.67% | ||
| Leakage | 1 | 0.19% | 1 | 0.67% | ||
| Late complications | 61 | 12.1% | 21 | 14% |
OR = 0.77 (0.42, 1.403) |
(.393) |
| CCC | 43 | 8.5% | 8 | 5.3% | ||
| Marginal ulcer | 11 | 2.18% | 7 | 4.67% | ||
| Protein malnutrition | 1 | 0.19% | 4 | 2.67% | ||
| Internal hernia | 3 | 0.59% | 2 | 1.33% | ||
| Port site hernia | 4 | 0.79% | 1 | 0.67% | ||
Categorical variables are expressed as counts (%). Continuous variables were expressed as means and (standard errors); , effect size adjusted for age and sex estimated using the generalized estimation equation (GEE) and weighted by inverse propensity score weights (IPSW) in multiple linear regression to quantify the mean difference (MD) and multiple logistic regression to estimate the odds ratio (OR); PRYGB, primary Roux-en-Y gastric bypass; RRYGB, revisional Roux-en-Y gastric bypass; UTI, urinary tract infection; MVO, mesenteric vascular occlusion; DVT, deep vein thrombosis; CCC, chronic calculous cholecystitis