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Table 1 Patient demographics, comorbidities and etiology of chronic cough.

From: Chronic cough and obstructive sleep apnea in a community-based pulmonary practice

Patient characteristics N = 75
Age in years (mean ± SD) 57 (± 14)
Female:Male ratio 1.5
BMI kg/m2 (mean ± SD)  
   Overall 32 (± 8)
   Male 31 (± 5)
   Female 33 (± 9)
Duration of cough in weeks (mean ± SD)  
   Overall 127 (± 274)
   Male 55 (± 101)
   Female 175 (± 337)
Comorbidities  
   Hypertension 25 (33%)
   Diabetes mellitus 9 (12%)
   Rheumatoid arthritis 1 (1%)
   Known sleep apnea 13 (17%)
   Coronary artery disease 1 (1%)
   ACE-I therapy 10 (13%)
Single diagnoses for cough 43/75 (57%)
   GERD 28 (37%)
   UACS 9 (12%)
   CVA 6 (8%)
Multiple diagnoses for cough 31/75 (41%)
   GERD & UACS 23 (31%)
   UACS & CVA 2 (3%)
   GERD & CVA 4 (5%)
UACS, GERD & CVA 2 (2%)
  1. Abbreviations: BMI - Body mass index, ACE-I - Angiotensin converting enzyme inhibitors.