Table 5. Association of study variables with body weight change three months after gastrectomy in multivariable analysis.
| Variables | β | SE | 95% CI | Wald χ2 | P | |
|---|---|---|---|---|---|---|
| lower | upper | |||||
| Intercept | 11.2% | 2.9% | 5.5% | 7.0% | 14.624 | <0.001 |
| Time | 19.780 | <0.001 | ||||
| T1 | –0.2% | 0. 5% | –3.2% | –1.2% | 19.438 | <0.001 |
| T2 | –0.4% | 0. 3% | –1.0% | 0.2% | 1.999 | 0.157 |
| T3 | — | |||||
| Preoperative BMI | 12.662 | 0.005 | ||||
| Obesity | 4.5% | 2.1% | 0. 5% | 8.4% | 4.928 | 0.026 |
| Overweight | 1.9% | 2.3% | –2.6% | 6.3% | 0.673 | 0.412 |
| Normal weight | 1.3% | 2.0% | –2.6% | 5.3% | 0.430 | 0.512 |
| Underweight | — | |||||
| Type of operation | ||||||
| Total | 2.8% | 1.2% | 0.6% | 5.1% | 6.027 | 0.014 |
| Distal | — | |||||
| Complication | ||||||
| With | 1.0% | 1.3% | –1.6% | 3.6% | 0.533 | 0.465 |
| Without | — | |||||
| Practice | 0.2% | 0.1% | <0.1% | 0.5% | 3.010 | 0.083 |
Notes.
- T1
- 1 month after gastrectomy
- T2
- 2 months after gastrectomy
- T3
- 3 months after gastrectomy
- BMI
- body mass index
- β
- partial regression coefficient
- SE
- standard error
- CI
- confidence interval