Table 4– Multivariable analysis: patient characteristics predicting requirement for multiple visits to confirm asthma
Multivariate OR (95% CI)p-value
Age1.04 (1.00–1.07)0.03
Smoking0.38 (0.10–1.38)0.14
Female sex0.60 (0.21–1.74)0.35
FEV1 % pred1.04 (1.01–1.07)0.02
Obesity#0.57 (0.20–1.62)0.29
ECRHSQ score1.44 (0.50–4.13)0.50
  • FEV1: forced expiratory volume in 1 s; % pred: % predicted; ECRHSQ: European Community Respiratory Health Study Questionnaire, maximum score 5. #: body mass index of ≥30 kg·m−2.