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Despite the high prevalence, there are limited studies focusing on the comorbid condition and association between asthma and OA. The aim of this study was to assess the prevalence of OA co-occurring with asthma and to identify the relevant clinical considerations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Adult participants aged over 40\u00a0years who completed questionnaire assessments and spirometry tests were enrolled from the Korean National Health and Nutrition Examination Survey. Asthma and OA were defined based on the medical history of a diagnosis made by a doctor. Radiographic severities of OA were measured using the Kellgren\u2013Lawrence grading system. Chronic obstructive pulmonary disease (COPD), as a comparative respiratory disease, was diagnosed based on the spirometric results.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 9344 subjects were enrolled, and the prevalence of asthma and COPD were 4.6%\u2009\u00b1\u20090.3% and 12.0%\u2009\u00b1\u20090.5%, respectively. The prevalence of OA in the asthma group was 31.9%\u2009\u00b1\u20092.8%, which was significantly higher than that in the COPD (17.8%\u2009\u00b1\u20091.5%) or control (16.2%\u2009\u00b1\u20090.6%) groups. OA was more prevalent in patients with asthma after adjusting for age, sex, body mass index, and smoking status (OR 1.65; 95% CI 1.27\u20132.13). Furthermore, after adjustment of this model for the prescription of OA medication, OA remained independently associated with asthma (OR 1.56; 95% CI 1.10\u20132.20). Conversely, the relationship of OA medication with asthma was not significant (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.64). This relationship was evident in patients with asthma without airflow limitation measured by spirometry (OR 1.97; 95% CI 1.32\u20132.93). Moreover, the radiographic severity of knee OA correlated with asthma (OR 1.10; 95% CI 1.0\u2013\u200d\u200d1.21).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>OA shows a high prevalence in patients with asthma, higher than in patients with COPD or the controls. The comorbid characteristics of these two conditions need to be considered in clinical practice.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1186\/s12890-021-01425-6","type":"journal-article","created":{"date-parts":[[2021,2,17]],"date-time":"2021-02-17T12:17:14Z","timestamp":1613564234000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":31,"title":["Novel association between asthma and osteoarthritis: a nationwide health and nutrition examination survey"],"prefix":"10.1186","volume":"21","author":[{"given":"Hyeon-Kyoung","family":"Koo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pamela","family":"Song","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4549-6284","authenticated-orcid":false,"given":"Joo-Hyun","family":"Lee","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,2,16]]},"reference":[{"issue":"5","key":"1425_CR1","doi-asserted-by":"publisher","first-page":"469","DOI":"10.1111\/j.1398-9995.2004.00526.x","volume":"59","author":"M Masoli","year":"2004","unstructured":"Masoli M, Fabian D, Holt S, Beasley R. 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