Table 2 The secondary outcome measures, reported by the clinical staff unless otherwise stated
Secondary outcome | Measure | Registration time |
|---|---|---|
Wang respiratory score [31] | Â | Â |
 Respiratory rate | Manual count, per minute. Scale 0–3 where 3 is worst | At baseline, 20 min later and every 3rd hour |
 Wheezing sound | Clinical observation. Scale 0–3 where 3 is worst | At baseline, 20 min later and every 3rd hour |
 Retractions/nasal flaring | Clinical observation. Scale 0–3 where 3 is worst | At baseline, 20 min later and every 3rd hour |
 General condition | Clinical observation. Scale 0–3 where 3 is worst | At baseline, 20 min later and every 3rd hour |
General condition (parents’ report) | Observation. Scale 0–10 where 10 is worst | At baseline, 20 min later and every 3rd hour during daytime |
Food intake (parents’ report) | Observation. Scale 0–2 where 2 is worst | At baseline, 20 min later and every 3rd hour during daytime |
Body weight | Naked weight on scales, g | Once daily |
Heart rate | Counts per minute, by pulse-oximetry, probe on the foot | At baseline, 20 min later and every 3rd hour |
Time to recovery | Time at hospital, hours | At the end of the study |
Lung complications | Referral to intensive care unit—yes/no | At the end of the study |