Table 2. Univariable and multivariable logistic regression analysis for risk factors of in patient with RSI ≥13.
| Variable | Univariable | Multivariable | |||||
|---|---|---|---|---|---|---|---|
| OR | 95% CI | P | OR | 95% CI | P | ||
| Time after esophagectomy <2 years | 3.155 | 1.438–6.924 | 0.004 | 4.516 | 1.824–11.185 | 0.001 | |
| Cervical anastomosis | 2.014 | 0.932–4.351 | 0.075 | – | – | – | |
| Thoracic anastomosis (time ≥2 years) | 1.000 | – | 0.005 | – | – | – | |
| Cervical anastomosis (time ≥2 years) | 1.704 | 0.409–7.093 | 0.464 | – | – | – | |
| Thoracic anastomosis (time <2 years) | 2.556 | 0.618–10.573 | 0.195 | – | – | – | |
| Cervical anastomosis (time <2 years) | 6.708 | 1.760–25.571 | 0.005 | – | – | – | |
| Retrosternal route | 4.954 | 1.127–21.769 | 0.034 | 11.626 | 2.090–64.668 | 0.005 | |
| Colonic conduit | 3.856 | 0.824–18.038 | 0.086 | – | – | – | |
| Three field lymph node dissection | 3.271 | 1.462–7.321 | 0.004 | – | – | – | |
| Vocal cord palsy | 3.393 | 1.534–7.505 | 0.003 | 3.531 | 1.454–8.574 | 0.005 | |
| Postoperative body weight (kg) | 0.958 | 0.920–0.997 | 0.035 | – | – | – | |
| Postoperative BMI (kg/m2) | 0.841 | 0.735–0.963 | 0.012 | – | – | – | |
| % change in body weight | 0.940 | 0.898–0.985 | 0.009 | 0.922 | 0.874–0.973 | 0.003 | |
| % change in BMI | 0.951 | 0.910–0.993 | 0.023 | – | – | – | |
RSI, reflux symptom index.