Table 2

Mean difference in FEV1 between treatment groups for the intention-to-treat (ITT, n=46), ‘as treated’ (n=46) and Completer (n=33) populations

Outcome FEV1 (L)Mean difference in FEV1 (azithromycin minus placebo)95% CI for population mean differencep Value
ITT analysis 46 patients, 177 measurements
Mean difference in FEV1 between treatment arms, adjusted for baseline FEV1, randomisation stratification variables (disease and transplant) and time since randomisation0.035−0.112 to 0.1820.6
‘As treated’ analysis 46 patients, 177 measurements
Mean difference in FEV1 between treatment arms, adjusted for baseline FEV1, randomisation stratification variables (disease and transplant) and time since randomisation0.3060.181 to 0.431<0.001
Completers analysis 33 patients, 124 measurements
Mean difference in FEV1 between treatment arms, adjusted for baseline FEV1, randomisation stratification variables (disease and transplant) and time since randomisation0.2780.170 to 0.386<0.001