Table 3

Time span between first and third prescription dispensed within 6 months for either bronchodilators or inhaled corticosteroids (ICS), as used to define cohort entry

Bronchodilators (reference)ICSDifference
All subjects
 Subjects# n22431862
 Time mean days85.999.513.6
Subjects with both exposures
 Subjects# n646646
 Time mean days86.298.412.2
  • #: includes subjects who were regular bronchodilator users prior to starting regular ICS use