Table 1 Follow-up statistics and characteristics of study population
Variable | Cohort |
|---|---|
Total sample | 195,941 |
Patient years | 1,827,150 |
Female; N (%) | 114,673 (59.5%) |
Age at index date; Mean (SD) | 29.6 (9.55) |
Socio-economic status; N (%) | |
Quintile 1 | 19,014 (9.7%) |
Quintile 2 | 26,332 (13.5%) |
Quintile 3 | 35,420 (18.2%) |
Quintile 4 | 47,858 (24.6%) |
Quintile 5 | 64,326 (33%) |
Unknown | 1824 (0.9%) |
Follow up years; Mean (SD) | 10.7 (4.95) |
Ratio of ICS to total asthma medications; Mean (SD) | 0.44 (0.400) |
Suboptimal use of ICS (< 50%) | 373,911 (48,8%) |
Inappropriate use of SABAs; N (%) | 55,414 (7.2%) |