Table 3.
Estimated effects of the causal latent class two-parameter logistic model for being in the 1st latent class rather than in the 2nd latent class for the primary outcomes. Estimated standard errors and asymptotic confidence interval at confidence level of 0.95
| 1st versus 2nd Latent Class | Estimated coefficient | S.E. | CI | |
|---|---|---|---|---|
| Intercept | 1.49 | 1.08 | (− 0.63, 3.61) | |
| No bowel preparation | − 0.85* | 0.51 | (− 1.21, −0.43) | Favor being in the 1st LC |
| Colon surgery | − 0.82*** | 0.20 | (− 1.85, 0.15) | |
| Ambulation within POD 1 | − 0.76*** | 0.21 | (− 1.17, −0.35) | |
| IV fluid stop within POD 2 | − 0.75*** | 0.17 | (− 1.08, −0.42) | |
| UC removal within POD 1 | − 0.62*** | 0.19 | (− 0.99, −0.25) | |
| Epidural anesthesia | − 0.39** | 0.18 | (− 0.74, −0.04) | |
| No surgical drainage | − 0.35* | 0.18 | (− 0.70, 0.00) | |
| Prokinetics | − 0.15 | 0.16 | (− 0.46, 0.16) | |
| NGT removed on POD 0 | − 0.15 | 0.27 | (− 0.68, 0.38) | |
| Morphine | − 0.05 | 0.16 | (− 0.36, 0.26) | |
| Preoperative glucidic drink | − 0.04 | 0.16 | (− 0.35, 0.27) | |
| Intravenous fluids | − 0.02 | 0.02 | (− 0.06, 0.02) | |
| IV fluids during POD 1 | 0.01 | 0.01 | (− 0.01, 0.03) | Favor being in the 2nd LC |
| Preoperative hospital stay | 0.05** | 0.02 | (0.01, 0.09) | |
| PONV prophylaxis | 0.08 | 0.19 | (− 0.29, 0.45) | |
| Premedication | 0.40 | 0.24 | (− 0.07, 0.87) | |
| Malignant lesion | 0.45** | 0.20 | (0.06, 0.84) | |
| Thromboembolism prophylaxis | 0.69 | 0.90 | (− 1.07, 2.45) | |
| Blood transfusion | 1.16** | 0.32 | (0.53, 1.79) |
LC: latent class; IV: intravenous; UC: urinary catheter; NGT: nasogastric tube; POD: postoperative day. Significance levels for the test based on the estimated standard errors that each parameter is equal to zero: *significant at 1%; **significant at 5%; ***significant at 10%