Table 1

Frequency of primary and secondary outcome measures

Outcome measurePrimary outcome (n=56)Secondary outcome (n=60)
Clinical response to treatment
 Asthma scores23 (40%)5 (8%)
 Bedside pulmonary function tests11 (20%)6 (11%)
 Adverse events2 (4%)11 (17%)
 Physical examination findings2 (4%)1 (2%)
  Vital signs4 (7%)2 (4%)
 Duration of oxygen therapy2 (4%)
 Dosage of inhaled beta agonist required3 (3%)7 (12%)
  Need for second-line therapy2 (4%)
Length of stay measures
 Disposition of patient after trial drug given1 (2%)5 (8%)
 Admission rate to hospital1 (2%)2 (4%)
 Total hospital length of stay5 (9%)7 (12%)
 ED length of stay2 (4%)2 (4%)
 Intensive care length of stay6 (8%)
 Intensive care admission rate1 (2%)
 Representation rate within same illness1 (2%)
Health economic measures1 (2%)1 (2%)