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Table 4 Factors associated with undiagnosed obstructive lung disease (OLD), multivariate analyses in participants with airflow limitation

From: Underdiagnosis of obstructive lung disease: findings from the French CONSTANCES cohort

  aPR (95% CI)
Model 1 Model 2
Gender     
 Men 1   1  
 Women 1.12 (0.96–1.30) 1.05 (0.90–1.23)
Age     
 For 10-year increase 0.96 (0.89–1.02) 0.98 (0.92–1.05)
ISCED education level     
  ≤ 4 (≤ upper secondary) 1   1  
  ≥ 5 (tertiary) 0.92 (0.78–1.08) 0.93 (0.79–1.15)
Tobacco consumption     
 Never 1   1  
 Ever < 10 pack-years 0.97 (0.79–1.19) 0.95 (0.78–1.14)
 Ever ≥ 10 pack-years 1.36 (1.11–1.67) 1.35 (1.11–1.64)
Respiratory symptoms     
  ≥ 1 1   1  
 No 1.67 (1.42–1.97) 1.51 (1.28–1.78)
Cardiovascular comorbidities     
 No 1   1  
 Yes 0.95 (0.74–1.22) 1.01 (0.79–1.28)
FEV1% predicted     
 For 10-point increase    1.12 (1.06–1.19)
  1. aPR adjusted prevalence ratio; CI confidence interval; FEV1 forced expiratory volume in 1 s; ISCED International Standard Classification of Education
  2. Weighted robust Poisson regression models adjusted for gender, age, education, tobacco consumption, respiratory symptoms and cardiovascular comorbidities (model 1), plus FEV1 (model 2) in 670 participants with complete data on covariates