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We investigated whether clinically intuitive asthma subtypes can be identified by applying data\u2010driven semi\u2010supervised techniques to information on frequency and triggers of different respiratory symptoms.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Partitioning Around Medoids clustering was applied to data on multiple symptoms and their triggers in school\u2010age children from three birth cohorts: MAAS (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u2009947, age 8\u2009years), SEATON (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u2009763, age 10) and ASHFORD (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u2009584, age 8). \u2018Guided\u2019 clustering, incorporating asthma diagnosis, was used to select the optimal number of clusters.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Five\u2010cluster solution was optimal. Based on their clinical characteristics, including frequency of asthma diagnosis, we interpreted one cluster as \u2018Healthy\u2019. Two clusters were characterised by high asthma prevalence (95.89% and 78.13%). We assigned children with asthma in these two clusters as \u2018persistent, multiple\u2010trigger, more severe\u2019 (PMTS) and \u2018persistent, triggered by infection, milder\u2019 (PIM). Children with asthma in the remaining two clusters were assigned as \u2018mild\u2010remitting wheeze\u2019 (MRW) and \u2018post\u2010bronchiolitis resolving asthma\u2019 (PBRA). PBRA was associated with RSV bronchiolitis in infancy. In most children with asthma in this cluster wheezing resolved by age 5\u20136, and predominant symptoms were shortness of breath and chest tightness. Children in PBRA had the highest hospitalisation rates and wheeze exacerbations in infancy. From age 8\u2009years (cluster derivation) to early adulthood (18\u201320\u2009years), lung function was significantly lower, and FeNO and airway hyperreactivity significantly higher in PMTS compared to all other clusters.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Patterns of coexisting symptoms identified by semi\u2010supervised data\u2010driven methods may reflect pathophysiological mechanisms of distinct subtypes of childhood wheezing disorders.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/all.16617","type":"journal-article","created":{"date-parts":[[2025,6,12]],"date-time":"2025-06-12T03:38:47Z","timestamp":1749699527000},"page":"1923-1934","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Patterns of Respiratory Symptoms and Asthma Diagnosis in School\u2010Age Children: Three Birth 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