Prevalence of obstructive airway disease by spirometric indices in non-smoker subjects with IHD and HTN

Background: Recent studies have found that there is a strong association between ischemic heart disease (IHD) and hypertension (HTN) with spirometric indices. Aims: To study the prevalence of obstructive airway disease (OAD) in non-smoker subjects with IHD and HTN and to compare them with healthy population. Settings and Design: This was a prospective, case-control, and observational study. Subjects and Methods: A total of 100 patients (cases) (n = 100) admitted in medicine department were recruited for this study. Controls (n = 100) were apparently healthy age- and sex-matched without HTN and IHD, recruited from March 2007 to July 2008. All eligible subjects were subjected to spirometric examination on a turbine-based spirometer (MIR spirolab-II) according to ATS/ERS guidelines. Forced expiratory volume/forced vital capacity (FEV 1 /FVC) ratio 70% FEV 1 /FVC ratio. Out of 100 controls, 2 were with FEV 1 /FVC ratio 70% FEV 1 /FVC ratio. Eleven patients out of 66 from the case population with HTN had FEV 1 /FVC ratio