Table 2

Progress of study subjects

ItemSalbutamol (n=18)Aminophylline (n=26)Difference (95% CI)p value*
Values for the sulbutamol and aminophylline groups are presented with standard errors (SE).
*Comparison of subjects in each group using unpaired t test (change in ASS, duration of oxygen and infusion, and time to discharge) or Wilcoxon rank sum test (ASS at 2 hours).
All subjects included in the intention to treat analysis.
Asthma severity score (ASS) at 2 hours6 (0.37)6.5 (0.33)0.5 (–)0.93
Change in ASS from time 0 to 2 hours–1.11 (0.39)–1.19 (0.25)–0.08 (–0.97 to 0.80)0.85
Duration of oxygen therapy (hours)17.8 (8.9)7.0 (6.1)2.56 times longer (0.92 to 7.18)0.07
Duration of infusion (hours)32.2 (3.2)27.8 (0.85)–4.4 (–6.2 to 14.8)0.41
Time to discharge (hours)85.4 (13.2)57.3 (8.5)1.49 times longer (1.06 to 2.10)0.02