Table 2.
Pooled fit of the regression model based on 5 imputations*.
| Variable | OR | Lower 95% CI | Upper 95% CI | P |
|---|---|---|---|---|
| Intercept | 0.000 | 0.000 | 45.159 | 0.142 |
| Age | 0.969 | 0.948 | 0.991 | 0.008 |
| New onset/worsened cough's duration | 1.030 | 0.996 | 1.065 | 0.084 |
| Chronic cough | 3.088 | 0.854 | 11.162 | 0.085 |
| Daily fever | 1.636 | 0.843 | 3.175 | 0.145 |
| Maximum temperature (°C) | 1.215 | 0.873 | 1.691 | 0.248 |
| Dyspnea | 1.270 | 0.535 | 3.017 | 0.586 |
| Dyspnea at effort only | 1.318 | 0.503 | 3.451 | 0.572 |
| Wheezing | 0.483 | 0.209 | 1.116 | 0.088 |
| Pain on inspiration | 0.767 | 0.385 | 1.529 | 0.448 |
| Rigors | 1.110 | 0.567 | 2.173 | 0.756 |
| Muco-purulent sputum | 0.626 | 0.344 | 1.138 | 0.124 |
| Bloody sputum | 3.071 | 1.150 | 8.203 | 0.025 |
| Cold/influenza signs | 0.644 | 0.326 | 1.271 | 0.200 |
| Smoking | 0.979 | 0.945 | 1.014 | 0.241 |
| History of pneumonia | 0.171 | 0.015 | 1.923 | 0.145 |
| Current temperature (°C) | 1.025 | 0.746 | 1.409 | 0.876 |
| Signs of upper respiratory infection | 0.622 | 0.304 | 1.272 | 0.188 |
| Respiratory rate (#/minute) | 1.041 | 0.988 | 1.097 | 0.128 |
| Prolonged expiration | 1.066 | 0.390 | 2.914 | 0.901 |
| Percussion dullness (a) | 2.214 | 0.761 | 6.440 | 0.144 |
| Auscultation friction rub (b) | 10.343 | 1.843 | 58.052 | 0.014 |
| Auscultation: diminished inspiratory sound (c) | 1.869 | 0.831 | 4.205 | 0.130 |
| Auscultation: bronchial breath sound (d) | 1.118 | 0.517 | 2.416 | 0.774 |
| Auscultation: rales and/or wheezing (e) | 0.886 | 0.403 | 1.950 | 0.763 |
| Abnormalities in a to e, if 2+ in single locus | 3.633 | 1.414 | 9.334 | 0.009 |
| Abnormalities in a to e, if 2+ in different loci | 4.472 | 0.337 | 59.294 | 0.223 |
| CRP | 1.017 | 1.012 | 1.022 | 0.000 |
Original dataset included 621 patients with data on pneumonia.
*Original dataset included 621 patients with data on pneumonia.