Table 5.
Logistic Regression of Risk Factors for GERD
| Variable | Univariate Logistic Regression | Multivariate Logistic Regression | ||||||
|---|---|---|---|---|---|---|---|---|
| 95% CI | 95% CI | |||||||
| OR | Lower | Upper | P value | OR | Lower | Upper | P value | |
| Age | 1.018 | 1.011 | 1.025* | 0.000 | 1.014 | 1.006 | 1.022 | 001 |
| Bmi | 1.002 | .992 | 1.013 | 0.651 | 1.003 | .993 | 1.013 | .574 |
| Cigarette | 1.226 | .759 | 1.980 | 0.405 | 1.512 | .884 | 2.558 | .123 |
| Alcohol | 0.817 | .608 | 1.099 | 0.182 | .853 | .611 | 1.191 | .351 |
| Cola | 1.513 | 1.194 | 1.915* | 0.001 | 1.290 | .988 | 1.685 | .062 |
| Coffee | 1.201 | .923 | 1.562 | 0.173 | 1.042 | .760 | 1.428 | .798 |
| Analgesics | 1.822 | 1.347 | 2.466* | 0.000 | 1.461 | 1.060 | 2.025* | .021 |
| Herbs | 1.502 | 1.188 | 1.898* | 0.001 | 1.318 | 1.020 | 1.704* | .035 |
| Occupation | ||||||||
| Student | 0.771 | .482 | 1.235 | 0.280 | 1.101 | .417 | 2.907 | .846 |
| Farming | 2.236 | 1.609 | 3.106* | 0.000 | 1.858 | 0.743 | 4.647 | .186 |
| Trading/business | 0.638 | 0.498 | 0.818* | 0.000 | .745 | .309 | 1.797 | .512 |
| Artisan | 0.524 | 0.339 | 0.811* | 0.004 | .692 | .267 | 1.795 | .449 |
| Civil servant | .988 | .717 | 1.363 | 0.943 | 0.991 | .402 | 2.441 | .984 |
| Unemployed | 3.099 | 1.606 | 5.979* | 0.001 | 2.904 | 0.991 | 8.507 | .052 |
| Others | 1.690 | 1.270 | 2.249* | 0.000 | 1.538 | .633 | 3.736 | .342 |
* = statistically significant