Table 1.
Study base selection of samples from young children with clinical pneumonia, wheezy episodes, and periods without wheezy symptoms, analysed for viruses and bacteria
| Variables | No of samples | |
|---|---|---|
| Viruses | Bacteria | |
| Total | 844 from 299 children | 984 from 361 children |
| Excluded: | ||
| Antibiotics in past week | — | 74 |
| Respiratory episode <3 days, pseudocroup, bronchitis, cough | 95 | 87 |
| Cases: | ||
| Clinical pneumonia in past week | 181 | 144 |
| Wheezy episode (≥3 consecutive days) | 481 | 400 |
| Controls: | ||
| Without wheeze in past week | 87 | 279 |