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Pulmonary function reduction in diabetes with and without chronic obstructive pulmonary disease
Gregory L Kinney1, Jennifer L Black-Shinn, Emily S Wan
1Corresponding author: Gregory L. Kinney, greg.kinney@ucdenver.edu.
Diabetes Care
|September 13, 2013
Summary
Diabetes significantly reduces lung function and quality of life in long-term smokers. This study investigated pulmonary function in individuals with diabetes and a history of smoking, revealing notable declines.
Area of Science:
- Pulmonary Medicine
- Endocrinology
- Epidemiology
Background:
- Diabetes mellitus impacts major organ systems, including the lungs, through impaired glycemic control and inflammation.
- Previous research indicates diabetes is linked to reduced pulmonary function, but studies often lack sufficient data on smokers.
- This study addresses the gap by examining lung function in a cohort with significant smoking exposure.
Purpose of the Study:
- To investigate the impact of diabetes on pulmonary function in individuals with a substantial smoking history (≥10 pack-years).
- To assess the association between diabetes, smoking, and chronic obstructive pulmonary disease (COPD) on lung function, exercise capacity, and quality of life.
Main Methods:
- Analysis of data from 10,129 participants in the Genetic Epidemiology of COPD (COPDGene) Study.
- Comparison of pulmonary function, exercise capacity, and quality of life measures between participants with and without diabetes, stratified by COPD status and smoking history.
Main Results:
- Diabetes was associated with reduced pulmonary function, including forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC), even after controlling for risk factors.
- Participants with diabetes exhibited significantly lower exercise capacity and reduced pulmonary-related quality of life across all stages of COPD.
- The findings highlight a detrimental effect of diabetes on lung health, particularly in the context of heavy smoking.
Conclusions:
- Diabetes exacerbates the negative effects of smoking on lung function.
- Reduced pulmonary function in diabetic smokers is linked to diminished exercise capacity and activity-related quality of life.
- These findings underscore the importance of managing diabetes to preserve respiratory health in individuals with a history of smoking.
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