{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T07:02:56Z","timestamp":1790233376188,"version":"4.1.0"},"reference-count":44,"publisher":"Oxford University Press (OUP)","issue":"5","license":[{"start":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T00:00:00Z","timestamp":1789084800000},"content-version":"vor","delay-in-days":24,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004359","name":"Swedish Research Council","doi-asserted-by":"publisher","award":["2016\u201303086"],"award-info":[{"award-number":["2016\u201303086"]}],"id":[{"id":"10.13039\/501100004359","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004359","name":"Swedish Research Council","doi-asserted-by":"publisher","award":["2018\u201302524"],"award-info":[{"award-number":["2018\u201302524"]}],"id":[{"id":"10.13039\/501100004359","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004359","name":"Swedish Research Council","doi-asserted-by":"publisher","award":["2020\u201302170"],"award-info":[{"award-number":["2020\u201302170"]}],"id":[{"id":"10.13039\/501100004359","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100006636","name":"Swedish Research Council for Health, Working Life and Welfare","doi-asserted-by":"publisher","award":["2017\u201300526"],"award-info":[{"award-number":["2017\u201300526"]}],"id":[{"id":"10.13039\/501100006636","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003793","name":"Swedish Heart-Lung Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003793","id-type":"DOI","asserted-by":"publisher"}]},{"name":"the Swedish Asthma and Allergy research foundation"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,8,18]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>In birth-cohort studies, response rates generally decline over time. We aimed to evaluate representativeness and identify predictors of retention up to young adulthood in a population-based birth cohort originally focused on asthma and allergies.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>The Barn\/Child, Allergy, Milieu, Stockholm, Epidemiology (BAMSE) birth cohort was established in 1994\u20136 in Stockholm, Sweden. We utilized data from questionnaires and Swedish registers to compare the characteristics of participants at age 24\u2009years (n\u2009=\u20093064) with those of the original cohort (n\u2009=\u20094089) and the general population born in 1994\u20136 in Stockholm county (n\u2009=\u200968\u2009378) and Sweden (n\u2009=\u2009310\u2009976). Logistic regression was used to identify predictors of retention at age 24\u2009years.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The response rate declined over time and was higher in females than in males in adolescence and young adulthood (80.0% versus 70.0% at age 24\u2009years). Compared with the original cohort, participants at age 24\u2009years more often had dispensed asthma medications (6.6% versus 5.8%) and university education (52.6% versus 47.8%), but had less often a mother who smoked during pregnancy (9.6% versus 10.8%). Similar patterns were observed in comparisons with the general population. Female sex [odds ratio (OR) 1.75, 95% confidence interval (CI) 1.49\u20132.05] and high parental education (OR 1.33, 95% CI 1.12\u20131.59) were the predominant predictors of retention in the cohort.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Female sex, higher socio-economic status, and asthma were predictive factors of retention in the cohort after 24\u2009years. This may have influenced the observed prevalence rates of asthma and allergies, and associations between potential risk factors and outcomes associated with retention.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/ije\/dyag196","type":"journal-article","created":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T11:32:40Z","timestamp":1788521560000},"source":"Crossref","is-referenced-by-count":0,"title":["Response rates and representativeness from birth to young adulthood in a Swedish birth cohort"],"prefix":"10.1093","volume":"55","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9785-7462","authenticated-orcid":false,"given":"Niklas","family":"Andersson","sequence":"first","affiliation":[{"name":"Institute of Environmental Medicine, Karolinska Institutet , 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