Fig. 1

Means of summary scores of the four versions of the ACQ (black lines) and of the single ACQ-items for FEV1-%predicted and PEF %-predicted (grey lines) from week 1 to week 12, ACQ-scores for single items and summary scores range from 0 to 6. (Analyses are based on available data per week (number of available observations between 69 and 75). Standard errors for the single measurement points range between 0.1 and 0.2)