a significant trendp = 0.004
Persistent cough after 2-week ICS treatment showed a significant trend to increase as past duration of cough, reported as baseline, increased (linear trend analysis, p = 0.004) ( Fig. 2 ).
Persistent cough after 2-week ICS treatment showed a significant trend to increase as past duration of cough, reported as baseline, increased (linear trend analysis, p = 0.004) ( Fig. 2 ).