Symptom-Based Subgroups of Koreans With Obstructive Sleep Apnea
- Authors
- Kim, Jinyoung; Keenan, Brendan T.; Lim, Diane C.; Lee, Seung Ku; Pack, Allan I.; Shin, Chol
- Issue Date
- 2018
- Publisher
- AMER ACAD SLEEP MEDICINE
- Keywords
- Asian population; insomnia; latent cluster analysis; obstructive sleep apnea; sleepiness; symptom
- Citation
- JOURNAL OF CLINICAL SLEEP MEDICINE, v.14, no.3, pp.437 - 443
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF CLINICAL SLEEP MEDICINE
- Volume
- 14
- Number
- 3
- Start Page
- 437
- End Page
- 443
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/80979
- DOI
- 10.5664/jcsm.6994
- ISSN
- 1550-9389
- Abstract
- Study Objectives: Recently, the Icelandic Sleep Apnea Cohort (ISAC) identified three subgroups in patients with obstructive sleep apnea (OSA) recruited from the sleep clinic based on clinical symptoms and comorbidities: excessively sleepy, minimally symptomatic, and disturbed sleep. This study sought to determine whether the three OSA subgroups are applicable to a population-based cohort in Korea. Methods: Study subjects are participants of an ongoing cohort study in Korea. Of the 2,918 participants, 422 new moderate to severe OSA cases (apneahypopnea index [AHI] >= 15 events/h) were diagnosed by home sleep studies. All participants completed a detailed questionnaire on sleep-related symptoms, comorbidities, medication, and other information. A latent class analysis was performed. Results: When examining solutions for up to 10 clusters, the a priori three-cluster solution was the optimal clustering solution. The three-cluster solution demonstrated a subgroup presentation similar to the clusters identified in the ISAC. The minimally symptomatic subgroup was most prevalent (55.7%) in the Korean cohort. Among the three subgroups, there were no differences in mean AHI and body mass index; however, the disturbed sleep subgroup was older and had more females. Conclusions: Combined with the ISAC data, we suggest that the three-symptom cluster solution for patients with OSA may be more widely applicable, irrespective of ethnicity and study population.
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