Association between the FEV1 and the history of having lived at high altitude, with regard to a cross- sectional study in patients with COPD due to tobacco consumption, in Lima and Callao

Abstract

Objective: to determine the association between the history of having lived at high altitude and the values of forced expiratory volume in the 1st second (FEV1) ≥80%, in patients diagnosed with chronic obstructive pulmonary disease (COPD) due to tobacco consumption. Methods: a cross-sectional study that included the analysis of 196 patients with COPD confirmed by spirometry. The association was measured by calculating crude and adjusted odds ratios (OR), by logistic regression. Results: in the adjusted model, the history of having lived at high altitude showed an OR=1.50 (CI at 95%, 0.67 to 3.34, p=0.326) for the values of FEV1≥80%. Conclusion: no significant association was found between the history of having lived at high altitude and the values of FEV≥80% in patients with COPD.