Table 2. Effect of a positive influenza A and B viruses and RSV point-of-care test result on patient management, Capital Region of Denmark, February–July 2018 (n = 555).
| Children (n = 180) | POCT positive | POCT negative | Difference | p value | |||
|---|---|---|---|---|---|---|---|
| Total n | % | Total n | % | z-score | 95% CI | ||
| Hospitalisation time, hours (IQR) | 1.0 | 0.0–27.1 | 15.2 | (1.4–42.2) | 2.4 | NA | 0.017 |
| Antibacterial treatment | 2 | 3.8 | 31 | 24.4 | 20.6 | 9.5 to 29.2 | 0.0011 |
| Readmission within one month | 13 | 24.5 | 30 | 23.6 | 0.9 | −11.6 to 15.5 | 0.897 |
| Lung X-ray within 24 hours | 2 | 3.8 | 15 | 11.8 | 8.0 | −2.0 to 15.3 | 0.094 |
| Viral or viral/bacterial RTI | 53 | 100.0 | 80 | 63.0 | 37.0 | 26.6 to 45.7 | < 0.0001 |
| Bacterial RTI | 0 | 0.0 | 9 | 7.1 | 7.1 | −0.4 to 12.9 | 0.047 |
| Adults (n = 375) | POCT positive | POCT negative | Difference | p value | |||
| Total n | % | Total n | % | z-score | 95% CI | ||
| Hospitalisation time, hours (IQR) | 16.3 | 2.6–75.3 | 60.6 | 11.3–142.2 | 3.9 | NA | < 0.0001 |
| Antibacterial treatment | 33 | 28.4 | 161 | 62.2 | 33.7 | 23.0 to 43.1 | < 0.0001 |
| Oseltamir | 21 | 18.1 | 6 | 2.3 | 15.8 | 9.3 to 23.9 | < 0.0001 |
| Readmission within one month | 30 | 25.9 | 78 | 30.1 | 4.2 | −5.9 to 13.4 | 0.403 |
| Death within one month of hospitalisation | 14 | 12.1 | 37 | 14.3 | 2.2 | −5.9 to 9.0 | 0.563 |
| Lung X-ray within 24 hours | 70 | 60.3 | 156 | 60.2 | 0.1 | −10.7 to 10.5 | 0.984 |
| Viral or viral/bacterial RTI | 108 | 93.1 | 61 | 23.6 | 69.6 | 61.3 to 75.4 | < 0.0001 |
| Bacterial RTI | 6 | 5.2 | 89 | 34.4 | 29.2 | 21.3 to 35.8 | < 0.0001 |
CI: confidence interval; IQR: interquartile range; NA: not applicable; POCT: point-of-care test; RSV: respiratory syncytial virus; RTI: respiratory tract infection.
Children were defined as patients under 18 years at time of presentation.