Table 4:
Logistic Regression: Predictors of Abdominal Surgery in UC patients (N = 208)
| UC ONLY | ||||
|---|---|---|---|---|
| Estimate | Standard Error | Z value | Pr(>|z|) | |
| Age | 0.02 | 0.01 | 1.53 | 0.13 |
| Gender | -0.32 | 0.35 | -0.93 | 0.35 |
| Disease Duration | 0.01 | 0.02 | 0.53 | 0.60 |
| Smoking Status | -0.74 | 0.56 | -1.31 | 0.19 |
| CHRNA5 rs16969968 | -0.17 | 0.35 | -0.49 | 0.63 |
| CHRNA5 rs16969968 * smoking status | 1 | 0.51 | 1.94 | 0.05 |
AIC: 231.72. In the logistic regression without interaction between smoking and CHRNA5 genotype, the main effects of smoking and CHRNA5 genotype alone were not significant either.