Table 3

Onset of bronchial asthma in a long term follow up of patients with atopic cough and cough variant asthma

Onset of typical asthma
YesNoTotal
NS=statistically not significant; BDP=beclomethasone dipropionate.
*p=0.0030, **p<0.0001 v cough variant asthma without BDP; †difference between patients with definite and probable atopic cough not significant; ‡p=0.014 v cough variant asthma without BDP; §p=0.002 v all patients with cough variant asthma.
Atopic cough
    Definite0 (0.0%)*24 (100.0%)24†
    Probable1 (1.7%)**57 (98.3%)58
    Total1 (1.2%)81 (98.8%)82§
Cough variant asthma
    With BDP2 (5.7%)33 (94.3%)35‡
    Without BDP6 (30.0%)14 (70.6%)20
    Total8 (14.5%)47 (85.5%)55