Table II.
Univariate and multiple logistic regression of predictors of CVA
| Characteristic | Univariate analysis |
Multiple analysis |
||||
|---|---|---|---|---|---|---|
| OR | 95% CI | P value | OR | 95% CI | P value | |
| Age | 0.997 | 0.986-1.007 | .5407 | 0.989 | 0.978-1.001 | .0644 |
| Sex: female | 2.818 | 2.028-3.917 | <.0001 | 2.527 | 1.764-3.619 | <.0001 |
| Nocturnal cough alone | 3.666 | 1.931-6.960 | <.0001 | 2.037 | 1.003-4.139 | .0491 |
| Total nocturnal cough | 2.888 | 2.174-3.927 | <.0001 | 2.412 | 1.711-3.402 | <.0001 |
| Trigger-common cold | 1.483 | 1.098-2.003 | .0102 | 1.369 | 0.988-1.898 | .0592 |
| Nasal itching | 2.700 | 1.983-3.676 | <.0001 | 1.626 | 1.122-2.356 | .0102 |
| History of rhinitis | 2.794 | 2.601-3.786 | <.0001 | 2.408 | 1.664-3.485 | <.0001 |
| Sneezing | 1.880 | 1.397-2.531 | <.0001 | |||
| Runny nose | 1.675 | 1.224-2.294 | .0013 | |||
| Shortness of breath | 1.481 | 1.047-2.095 | .0265 | |||
| Trigger-lying down | 1.805 | 1.278-2.550 | .0008 | |||