Table 2

Number and proportion of trial participants in each group who failed to regain their pre-exacerbation FEV1, with relative risk (95% CI) due to hypertonic saline use

CharacteristicHypertonic saline
Relative risk
(95% CI)
Failed to regain pre-exacerbation FEV1 by discharge, n (%)17 (25)28 (43)0.59 (0.36 to 0.96)
  • Pre-exacerbation FEV1 is defined as the best forced expiratory volume in 1 s recorded as an outpatient in the 6 months before the exacerbation.