{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,1]],"date-time":"2026-07-01T13:45:30Z","timestamp":1782913530823,"version":"3.54.5"},"reference-count":34,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2018,2,7]],"date-time":"2018-02-07T00:00:00Z","timestamp":1517961600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01"],"award-info":[{"award-number":["R01"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000049","name":"National Institute on Aging","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000049","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01AG034676"],"award-info":[{"award-number":["R01AG034676"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000871","name":"Mayo Clinic","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Allergy"],"published-print":{"date-parts":[[2018,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Frequent wheezing in original asthma predictive index (API) was defined by parental report of recurrent wheezing <jats:italic>within 1\u00a0year<\/jats:italic> during the first 3\u00a0years of life. The nature of frequent wheezing in children, particularly aged over 3\u00a0years, has not been studied. We aimed to assess the frequency and interval of wheezing to define frequent wheezing in ascertaining asthma for children using medical records.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Among children who participated in a previous study (n\u00a0=\u00a0427), all wheezing episodes documented in medical records were collected for children who had \u22652 wheezing episodes PLUS met one major criterion or two minor criteria of API. We compared the distribution of known risk factors for asthma between subjects having two consecutive wheezing episodes with shorter interval (\u22641\u00a0year) compared to those with longer interval (1 to 3\u00a0years).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 62 children met API at median age of 2.3\u00a0years. During follow\u2010up period (median age: 11.3\u00a0years), a total of 198 wheezing episodes were observed. 81% of wheezing intervals were within 3\u00a0years from the earlier wheezing episode, including 60% within 1\u00a0year. Children who met API based on 1\u2010year interval (n\u00a0=\u00a040) vs 1\u2010 to 3\u2010year interval (n\u00a0=\u00a013) appeared to be similar in regard to the known risk factors for asthma.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Our exploratory study finding suggests that children who had frequent wheezing episodes with longer interval (&lt;3\u00a0years) need to be considered to be determined as asthma cases when API is applied to retrospective medical records. Prospective studies with a larger sample size need to replicate this finding.<\/jats:p><\/jats:sec>","DOI":"10.1111\/all.13403","type":"journal-article","created":{"date-parts":[[2018,1,10]],"date-time":"2018-01-10T17:23:46Z","timestamp":1515605026000},"page":"1276-1283","source":"Crossref","is-referenced-by-count":9,"title":["Usefulness of asthma predictive index in ascertaining asthma status of children using medical records: An explorative study"],"prefix":"10.1111","volume":"73","author":[{"given":"C.\u2010I.","family":"Wi","sequence":"first","affiliation":[{"name":"Department of Pediatric and Adolescent Medicine Mayo Clinic Rochester MN USA"},{"name":"Asthma Epidemiology Research Unit Mayo Clinic Rochester MN USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"E. 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A.","family":"Park","sequence":"additional","affiliation":[{"name":"Division of Allergic Diseases Mayo Clinic Rochester MN USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. A.","family":"Castro\u2010Rodriguez","sequence":"additional","affiliation":[{"name":"Division of Pediatrics School of Medicine Pontificia Universidad Catolica de Chile Santiago Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2112-4240","authenticated-orcid":false,"given":"Y. 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