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. Author manuscript; available in PMC: 2024 May 1.
Published in final edited form as: Thorax. 2022 May 2;78(5):432–441. doi: 10.1136/thoraxjnl-2021-217674

Table 1.

Demographics of the subjects in GERA, MGB Biobank and Rotterdam Study analysed for the oral corticosteroid burst outcome

GERA (n=5710)
MGB biobank (n=676)
Rotterdam study (n=465)
Cases (n=3097) Controls (n=2613) P value Cases (n=229) Controls (n=447) P value Cases (n=274) Controls (n=191) P value
Age (years, mean±SD)  63.8 (±14.0)  63.4 (±15.2)   0.24   57.7 (±15.4)   59.9 (±15.9)   0.09   63.7 (±8.7)   62.5 (±9.0)   0.16

Female sex 2168 (70.0%) 1765 (67.5%)   0.046 160 (69.9%) 274 (61.3%)   0.03 191 (69.7%) 132 (69.1%)   0.97

Smoking status <0.001   0.74   0.43

 Never 1622 (54.1%) 1481 (59.1%)   78 (59.1%) 146 (60.8%) 105 (38.3%)   65 (34.0%)

 Current or Former 1378 (45.9%) 1027 (40.9%)   54 (40.9%)   94 (39.2%) 168 (61.3%) 124 (65.0%)

BMI (kg/m2, mean±SD)  29.2 (±6.2)  28.6 (±6.3) <0.05   30.6 (±7.7)   29.0 (±7.6)   0.06   28.1 (±4.4)   28.2 (±4.9)   0.9

Co-morbidities

 Allergic rhinitis 1404 (45.3%) 1113 (42.6%) <0.05 156 (68.1%) 285 (63.8%)   0.26

 GERD*   983 (31.7%)   651 (24.9%) <0.001 153 (66.8%) 281 (62.9%)   0.31

Concurrent asthma medications

 Long-acting β-agonists   333 (10.8%)   117 (4.5%) <0.001 158 (69.0%) 181 (40.5%) <0.001 239 (87.2%) 125 (65.4%) <0.001

 Anti-leukotrienes   149 (4.8%)  71 (2.7%) <0.001   87 (38.0%)   77 (17.2%) <0.001   56 (20.4%)   15 (7.9%) <0.001

 Anti-cholinergics   110 (3.6%)  37 (1.4%) <0.001   64 (27.9%)   54 (12.1%) <0.001 178 (65.0%)   73 (38.2%) <0.001

 Biologics  6 (2.6%)  0 (0.0%)   0.001
*

Gastro-oesophageal reflux disease.

No subjects in GERA or Rotterdam Study on biologics. In MGB Biobank, omalizumab and mepolizumab only.

BMI, body mass index; GERA, Genetic Epidemiology Research on Adult and Aging; MGB, Mass General Brigham.