Sex-related differences in COPD in five Latin American cities: the PLATINO study

Area of Science:

• Pulmonary Medicine
• Epidemiology
• Sex Differences in Health

Background:

• Chronic obstructive pulmonary disease (COPD) exhibits varying clinical presentations.
• Sex-based disparities in health status perception, dyspnoea, and physical activity are noted in COPD.
• Understanding these differences is crucial for targeted patient management.

Purpose of the Study:

• To investigate sex differences in health status perception, dyspnoea, and physical activity among individuals with and without COPD.
• To identify factors contributing to these observed sex disparities.
• To analyze the clinical expression of COPD across different sexes.

Main Methods:

• Utilized data from the PLATINO cross-sectional, population-based study.
• Defined COPD using post-bronchodilator spirometry (FEV1/FVC ratio <0.70).
• Assessed health status using the SF-12 questionnaire and dyspnoea using the Medical Research Council scale.

Main Results:

• Females consistently reported higher levels of dyspnoea and physical limitation compared to males, both with and without COPD.
• Female sex was a significant independent factor associated with increased dyspnoea (OR 1.60) and poorer physical health status (SF-12 physical score OR -1.13).
• While COPD severity distribution was similar, currently smoking females presented with more severe COPD than smoking males.

Conclusions:

• Significant sex differences exist in how COPD affects the perception of dyspnoea, overall health status, and physical activity.
• These findings highlight the need for sex-specific considerations in COPD assessment and treatment strategies.
• Further research into the underlying mechanisms of these sex disparities in COPD is warranted.