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. 2022 Mar 30;19(7):4118.
doi: 10.3390/ijerph19074118.

Chronic Obstructive Pulmonary Disease Effect of Nonapnea Sleep Disorder on the Risk of Obesity: A Nationwide Population-Based Case-Control Study

Pi-Ching Yu  1   2 , Ren-Jei Chung  3 , Yao-Ching Huang  3   4   5 , Shi-Hao Huang  3   4   5 , Bing-Long Wang  5 , Wu-Chien Chien  4   5   6   7 , Chi-Hsiang Chung  4   6   7 , Chien-An Sun  8   9 , Sung-Sen Yang  1   10 , Gwo-Jang Wu  1   4   11
Affiliations

Chronic Obstructive Pulmonary Disease Effect of Nonapnea Sleep Disorder on the Risk of Obesity: A Nationwide Population-Based Case-Control Study

Pi-Ching Yu et al. Int J Environ Res Public Health. .

Abstract

Objectives: To investigate whether chronic obstructive pulmonary disease (COPD) affects nonapnea sleep disorder (NASD) on the risk of obesity. Materials and Methods: From 1 January 2000 to 31 December 2015, a total of 24,363 patients with obesity from the 2005 Longitudinal Health Insurance Database were identified; 97,452 patients without obesity were also identified from the same database. Multiple logistic regression was used to analyze the previous exposure risk of patients with obesity and NASD. A p value of <0.05 was considered significant. Results: The risk of developing obesity in patients with COPD is 3.05 times higher than that in patients without COPD. Patients with COPD with NASD had a 1.606-fold higher risk of developing obesity than those without NASD. Patients with obesity were more likely to be exposed to NASD than did those without obesity (adjusted odds ratio, 1.693; 95% confidence interval, 1.575−1.821, p < 0.001). Furthermore, the closeness of the exposure period to the index time was positively associated with the severity of obesity, with a dose−response effect. The exposure duration of NASD in patients with obesity was 1.693 times than that in those without obesity. Longer exposure durations were associated with more severe obesity, also with a dose−response effect. Conclusions: The COPD effect of NASD increases the subsequent risk of obesity, and the risk of obesity was determined to be significantly higher in patients with NASD in this case−control study. Longer exposure to NASD was associated with a higher likelihood of obesity, also with a dose−response effect.

Keywords: National Health Insurance Research Database; case–control study; chronic obstructive pulmonary disease; nonapnea sleep disorder; obesity.

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Conflict of interest statement

The authors declare that they have no competing interest.

Figures

Figure 1
Figure 1
Flowchart the study design from the National Health Insurance Research Database in Taiwan.
Figure 2
Figure 2
The last nonapnea sleep disorder exposure before the first obesity diagnosis.
Figure 3
Figure 3
The first nonapnea sleep disorder exposure to the last one before obesity diagnosis.
See this image and copyright information in PMC

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