A cross-sectional survey on the effects of temperature and humidity on health outcomes in individuals with Chronic Obstructive Pulmonary Disease: a pilot study

Abstract

Chronic Obstructive Pulmonary Disease (COPD), a progressive respiratory disorder, is the third leading cause of death globally. Temperature and humidity weather extremes influence the respiratory system. A cross-sectional self-reported survey assessed extremes of temperature and humidity on health outcomes in three conditions: moderate or ideal, and extremes of hot and humid, and cold and dry. Due to the challenge of recruitment, we included a small sample of individuals with COPD and related chronic respiratory diseases for this pilot study. Results (n=37, mean age 65 years) found both extreme conditions were associated with lower health status, decreased amount and difficulty level of physical activity, higher exacerbations, increased rescue inhaler use and hospitalizations. Future prospective research should consider confounders, disease severity, individual geographical regions, and spectrums of temperature and humidity. Understanding the effects of temperature on COPD outcomes will help create a foundation of self-management programs for individuals living with COPD conditions.