Cross-cultural comparison of the sleep-disordered breathing prevalence among Americans and Japanese

K. Yamagishi, T. Ohira, H. Nakano, S. J. Bielinski, S. Sakurai, H. Imano, M. Kiyama, A. Kitamura, S. Sato, M. Konishi, E. Shahar, A. R. Folsom, H. Iso, T. Tanigawae

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71 Scopus citations


The aim of the present study was to compare the prevalence of sleep-disordered breathing among Hispanic and white Americans and Japanese. A 1-night sleep study using a single-channel airflow monitor was performed on 211 Hispanics and 246 Whites from the Minnesota field centre (St Paul, MN, USA) of the Multi-Ethnic Study of Atherosclerosis (MESA), and 978 Japanese from three community-based cohorts of the Circulatory Risk in Communities Study (CIRCS) in Japan. The respiratory disturbance index and sleep-disordered breathing, defined as a respiratory disturbance index of ≥15 events·h -1, were estimated. The prevalence of sleep-disordered breathing was higher in males (34.2%) than females (14.7%), and among Hispanics (36.5%) and Whites (33.3%) than among Japanese (18.4%), corresponding to differences in body mass index. Within body mass index strata, the race difference in sleep-disordered breathing was attenuated. This was also true when body mass index was adjusted for instead of stratification. The strong association between body mass index and sleep-disordered breathing was similar in Japanese and Americans. The prevalence of sleep-disordered breathing was lower among Japanese than among Americans. However, the association of body mass index with sleep-disordered breathing was strong, and similar among the race/ethnic groups studied. The majority of the race/ethnic difference in sleep-disordered breathing prevalence was explained by a difference in body mass index distribution. Copyright

Original languageEnglish (US)
Pages (from-to)379-384
Number of pages6
JournalEuropean Respiratory Journal
Issue number2
StatePublished - Aug 2010


  • Cross-sectional study
  • Epidemiology
  • Prevalence
  • Sleep apnoea

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine


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