Prevalence, awareness, characteristics, and health outcomes associated with COPD at-risk status among adults in Japan.
OBJECTIVE
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.
a Department of Biomedical Laboratory Sciences, Faculty of Life Sciences , Kumamoto University , Kumamoto , Japan.
Hisamitsu
H
Omori
b Medical Affairs, Development and Medical Affairs , GlaxoSmithKline K.K ., Tokyo , Japan.
Daisuke
D
Yoshimoto
c Health Outcomes Practice , Kantar Health Inc ., New York , USA.
Maya
M
Kumar
c Health Outcomes Practice , Kantar Health Inc ., New York , USA.
Amir
A
Goren
D000328:Adult; D000368:Aged; D004526:Efficiency; D005260:Female; D015438:Health Behavior; D007722:Health Knowledge, Attitudes, Practice; D006295:Health Resources / Q000706:statistics & numerical data; D006306:Health Surveys; D006801:Humans; D007564:Japan / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D015995:Prevalence; D029424:Pulmonary Disease, Chronic Obstructive / Q000453:epidemiology / Q000503:physiopathology*; D011788:Quality of Life; D012044:Regression Analysis
At-risk status; Japan; awareness; chronic obstructive pulmonary disease; health-related quality of life; prevalence; productivity loss; resource use