Multivariable binary logistic regression assessing the effect of demographic variables, smoking status, and medical condition on the occurrence of xerostomia, taste disturbances, and smell disturbances
| Parameters | Age | Female vs. male | Smoking vs. no smoking | Medical condition vs. no medical condition | Long medication vs. no long medication | |
|---|---|---|---|---|---|---|
| Xerostomia | AOR | 1.03 | 1.45 | 2.47 | 1.07 | 0.96 |
| 95% CI | 1.01, 1.04 | 1.02, 2.05 | 1.39, 4.40 | 0.56, 2.03 | 0.55, 1.65 | |
| p-value | 0.002* | 0.038* | 0.002* | 0.838 | 0.871 | |
| Taste disturbances | AOR | 1.02 | 1.45 | 2.39 | 0.95 | 1.19 |
| 95% CI | 1.01, 1.04 | 1.05, 2.00 | 1.50, 3.82 | 0.54, 1.69 | 0.72, 1.95 | |
| p-value | < 0.0001* | 0.025* | < 0.0001* | 0.871 | 0.501 | |
| Smell disturbances | AOR | 1.02 | 1.90 | 2.45 | 1.13 | 1.19 |
| 95% CI | 1.01, 1.04 | 1.36, 2.65 | 1.46, 4.09 | 0.61, 2.11 | 0.69, 2.03 | |
| p-value | 0.005* | < 0.0001* | 0.001* | 0.691 | 0.533 | |
AOR: adjusted odds ratio; CI: confidence interval; * statistically significant difference at p-value < 0.05. Models’ summary: xerostomia (χ2 = 38.63, df = 5, p-value < 0.0001, –2 log likelihood = 914.78, Nagelkerke R Square = 0.067, percentage of correctly classified = 73.6%), taste disturbances (χ2 = 54.13, df = 5, p-value < 0.0001, –2 log likelihood = 1,083.94, Nagelkerke R Square = 0.085, percentage of correctly classified = 61.1%), smell disturbances (χ2 = 55.57, df = 5, p-value < 0.0001, –2 log likelihood = 982.533, Nagelkerke R Square = 0.091, percentage of correctly classified = 67.6%)