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Citation |
Huang TH, Chen CZ, Kuo HI, Er HP, Lin SH. J. Investig. Med. 2019; ePub(ePub): ePub. |
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Affiliation |
Biostatistics Consulting Center, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan. |
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Copyright |
(Copyright © 2019, American Federation for Clinical Research, Publisher B C Decker) |
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DOI |
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PMID |
31892639 |
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Abstract |
This study tests our hypothesis that patients with chronic obstructive pulmonary disease (COPD) have an increased risk of traumatic brain injury (TBI).In this nationwide retrospective cohort study, we used a subset of Taiwan's National Health Insurance Research Database, involving 1 million randomly selected beneficiaries. Patients with newly diagnosed COPD between 2000 and 2008 were identified. They were subgrouped as 'COPDAE+' (if they had severe acute exacerbation of COPD during the follow-ups) or 'COPDAE-' (if they had no acute exacerbation), and were frequency matched with randomly selected subjects without COPD (the 'non-COPD' group). Baseline differences were balanced by the inverse probability of treatment weighting based on the propensity score. For each patient, the risk of TBI during the subsequent 5 years was determined. The competing risk of death was controlled.We identified 3734 patients in 'COPDAE+', and frequency matched them with 11,202 patients in 'COPDAE-' and 11,202 subjects in 'non-COPD'. Compared with those in 'non-COPD', patients in 'COPDAE+' and 'COPDAE-' had an increased risk of TBI: the adjusted HR for 'COPDAE+' was 1.50, 95% CI 1.31 to 1.73, and that for 'COPDAE-' was 1.21, 95% CI 1.09 to 1.34. The highest risk was observed in the 'COPDAE+' group that aged <65 (the adjusted HR was 1.92; 95% CI 1.39 to 2.64).COPD has been linked to complications beyond the respiratory system. In this study we showed that COPD is associated with an increased risk of TBI. Language: en |
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Keywords |
brain injuries; pulmonary disease, chronic obstructive |