Predictor | Univariate | Multivariate | ||||
---|---|---|---|---|---|---|
P value | COR | 95% CI | P value | OR | 95% CI | |
Age (years) | 0.002 | Â | Â | 0.019 | Â | Â |
 < 46 years |  | R | R |  | R | R |
 ≥ 46 years |  | 5.2 | 1.8–14.7 |  | 4.4 | 1.3–15 |
Cardia | 0.001 | Â | Â | 0.007 | Â | Â |
 Competent |  | R | R |  | R | R |
 Incompetent |  | 8.2 | 2.5–27.2 |  | 5.8 | 1.6–20.9 |
Dysphagia | 0.034 | Â | Â | 0.033 | Â | Â |
 Absent |  | R | R |  | R | R |
 Present |  | 3.2 | 1.1–9.4 |  | 4.3 | 1.1–16.6 |
Hypertension | 0.023 | Â | Â | 0.203 | Â | Â |
 Absent |  | R | R |  | R | R |
 Present |  | 4.9 | 1.2–19.6 |  | 2.7 | 0.583–12.6 |