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Table 3 Multivariate logistic regression models for cough at follow-up in those without identifiable respiratory disease (n = 2408) and among never/ex-smokers (n = 1938).

From: Associations of physical and mental health problems with chronic cough in a representative population cohort

  All cough Dry cough Cough+sputum
  All subjects Non-smokers   
  OR (95%C.I.) OR (95%C.I.) OR (95%C.I.) OR (95%C.I.)
Male 1.6 (1.3-2.1) 1.5 (1.05-2.0) 1.4 (1.02-1.9) 2.3 (1.4-3.6)
Age     
18-39 1.0 1.0 1.0 1.0
40-59 1.5 (1.1-2.0) 1.4 (0.9-2.0) 1.9 (1.3-2.7) 0.7 (0.4-1.2)
60+ 1.7 (1.1-2.5) 1.8 (1.2-2.8) 2.6 (1.6-4.1 0.6 (0.3-1.3)
GHQ disturbance     
mild-moderate 1.03 (0.7-1.6) 0.9 (0.5-1.6) 1.1 (0.7-1.8) 0.8 (0.4-1.8)
severe 2.2 (1.6-3.0) 1.8 (1.2-2.9) 2.1 (1.4-3.1) 2.6 (1.5-4.3)
Smoking status     
former smoker 0.9 (0.7-1.3) - 1.01 (0.7-1.5) 0.8 (0.4-1.4)
current 4.1 (3.0-5.5) - 5.4 (3.8-7.8) 2.5 (1.5-4.0)
ACE inhibitor use 1.6 (1.02-2.5) 1.4 (0.9-2.3) 1.8 (1.1-2.9) 1.1 (0.4-2.9)
Atopic 1.3 (0.97-1.7) 1.3 (0.9-1.8) 1.2 (0.9-1.7) 1.4 (0.9-2.2)
Anti-reflux agents 1.3 (0.8-2.0) 1.2 (0.7-2.0) 1.3 (0.8-2.0) 1.5 (0.7-3.4)
BMI     
overweight 1.00 (0.7-1.4) 1.2 (0.8-1.8) 1.4 (0.96-2.1) 0.5 (0.3-0.8)
obese 1.5 (1.1-2.0) 1.7 (1.1-2.6) 2.0 (1.2-2.9) 0.9 (0.5-1.5)