3. Kabir: IV ampicillin versus oral erythromycin versus control.

Variable	Intervention			Outcome
	IV ampicillin	Oral erythromycin	Control	Chi2 test (P value)
Day 2
Oxygen sats (< 90%)	2/99 (2%)	6/99 (6%)	6/97 (6%)	2.45 (P value = 0.29)
Fever	5/99 (5%)	6/99 (6%)	4/97 (4%)	0.38 (P value = 0.83)
Day 7
Wheeze	8/99 (8%)	9/99 (9%)	4/97 (4%)	2.04 (P value = 0.36)
Shortness of breath	8/99 (8%)	9/99 (9%)	2/97 (2%)	4.68 (P value = 0.10)
Cough	10/99 (10%)	9/99 (9%)	3/97 (3%)	4.06 (P value = 0.13)

CI: confidence interval
 IV: intravenous
 PICU: paediatric intensive care unit
 SD: standard deviation