{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T04:43:57Z","timestamp":1777524237404,"version":"3.51.4"},"reference-count":25,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2018,3,23]],"date-time":"2018-03-23T00:00:00Z","timestamp":1521763200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["The Cleft Palate Craniofacial Journal"],"published-print":{"date-parts":[[2018,5]]},"abstract":"<jats:sec>\n                    <jats:title>Objective:<\/jats:title>\n                    <jats:p>To investigate the age effects of cleft palate repair on middle ear function and hearing level in patients who underwent cleft palate repair at different ages by audiologic examination.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>Medical histories were gathered in detail, and audiologic tests (ie, tympanometry and pure tone hearing threshold) were conducted in 126 patients after palatoplasty. The patients were divided into the following 4 groups according to their ages when they underwent cleft palate repair: group I (0-3 years, 73 patients), group II (4-7 years, 29 patients), group III (8-11 years, 16 patients), and group IV (12 years and older, 8 patients). The data regarding tympanograms, hearing levels, and the average hearing thresholds of each group were analyzed using chi-square tests.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>The prevalence of middle ear dysfunction and hearing loss in the patients who underwent palatoplasty before 3 years old (27.4% and 2.0% respectively) was significantly lower than that in patients who underwent palatopalsty at 12 years or older (75.0% and 43.7%, respectively). Linear-by-linear association revealed that the prevalences of middle ear dysfunction and hearing loss among the 4 groups were significantly different ( P &lt; .05).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>The prevalence of middle ear dysfunction and hearing loss tended to increase with advancing age at the time of cleft palate repair. From an audiologist\u2019s perspective, palatoplasty at an early age is very beneficial in helping children with cleft palates acquire better middle ear function and hearing level.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/1055665618754632","type":"journal-article","created":{"date-parts":[[2018,3,23]],"date-time":"2018-03-23T12:50:25Z","timestamp":1521809425000},"page":"753-757","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":12,"title":["The Effects of Age at Cleft Palate Repair on Middle Ear Function and Hearing Level"],"prefix":"10.1177","volume":"55","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1080-3005","authenticated-orcid":false,"given":"Qun","family":"Lou","sequence":"first","affiliation":[{"name":"Cleft Lip and Palate Center, Department of Oral and Maxillofacial Surgery, Peking University School of Stomatology, Zhongguancun, Beijing, China"},{"name":"Shanghai Jiaotong University School of Medicine, Shanghai, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hongping","family":"Zhu","sequence":"additional","affiliation":[{"name":"Cleft Lip and Palate Center, Department of Oral and Maxillofacial Surgery, Peking University School of Stomatology, Zhongguancun, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yi","family":"Luo","sequence":"additional","affiliation":[{"name":"Cleft Lip and Palate Center, Department of Oral and Maxillofacial Surgery, Peking University School of Stomatology, Zhongguancun, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhibo","family":"Zhou","sequence":"additional","affiliation":[{"name":"Cleft Lip and Palate Center, Department of Oral and Maxillofacial Surgery, Peking University School of Stomatology, Zhongguancun, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lian","family":"Ma","sequence":"additional","affiliation":[{"name":"Cleft Lip and Palate Center, Department of Oral and Maxillofacial Surgery, Peking University School of Stomatology, Zhongguancun, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoran","family":"Ma","sequence":"additional","affiliation":[{"name":"Department of Speech and Hearing, The University of Hong Kong, Pok Fu Lam, Hong Kong"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuan","family":"Fu","sequence":"additional","affiliation":[{"name":"Cleft Lip and Palate Center, Department of Oral and Maxillofacial Surgery, Peking University School of Stomatology, Zhongguancun, Beijing, 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