A large proportion of Japanese adults are at risk for COPD and experience impaired health outcomes, highlighting a need for increased public awareness.
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High at-risk prevalence links to greater resource use and lower HRQoL in Japan; hypothesis-generating and requires prospective validation before guiding practice.
OBJECTIVES: We examined the prevalence of chronic obstructive pulmonary disease (COPD) diagnosed and at-risk status, and public awareness of COPD among adults in Japan, as well as respondent characteristics and health outcomes compared with controls. METHODS: Regression models used 2012 National Health and Wellness Survey in Japan data to compare COPD-diagnosed, at-risk, and healthy adults (aged ≥18) on demographics, health behaviors, health-related quality of life (HRQoL), productivity and healthcare resource use. RESULTS: Among n = 29,978 respondents, diagnosed COPD prevalence was 0.9%; 26.9% were at-risk. Relative to controls, those at-risk and diagnosed with COPD had significantly greater healthcare resource use, with lower productivity and HRQoL. Fewer than 20% of respondents were aware of COPD. CONCLUSIONS: Over 25% of adult Japanese respondents were at-risk for COPD and had health outcomes impairments relative to controls. Efforts to increase awareness among the general public are needed.
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Omori et al. (2015) studied this question.
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