Treated prevalence and incidence of dementia among National Health Insurance enrollees in Taiwan, 1996-2003.
The National Health Insurance database to determine the treated prevalence and incidence of dementia in Taiwan was used in this study. A population-based random sample of 22 118 subjects aged 65 or older was obtained as a dynamic cohort. Those study subjects who had filed at least one service claim from 1996 to 2003 for either outpatient care or inpatient care with a principal diagnosis of dementia were identified. The annual treated prevalence increased from 0.71% to 1.92% from 1996 to 2003. The annual treated incidence rates were around 0.76% to 1.04% per year from 1997 to 2003. The annual treated incidence rates for the 5-year age groups, from 65 to 90 years and older, were 0.44%, 0.65%, 0.98%, 1.46%, 1.81%, and 1.80%, respectively. Both the treated prevalence and incidence rates of dementia in National Health Insurance were lower than those of community studies.
Chien
I-Chia
IC
Jianan Mental Hospital, Department of Health, and Chia Nan University of Pharmacy & 8cience, Tainan, Taiwan. icchien@mail.cnpc.gov.tw
Lin
Yu-Chung
YC
Chou
Yiing-Jenq
YJ
Lin
Ching-Heng
CH
Bih
Shin-Huey
SH
Lee
Cheng-Hua
CH
Chou
Pesus
P
D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000453:epidemiology* / Q000208:ethnology* / Q000628:therapy; D000553:Ambulatory Care / Q000706:statistics & numerical data; D015331:Cohort Studies; D003431:Cross-Cultural Comparison; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D015994:Incidence; D007344:Insurance Claim Reporting / Q000706:statistics & numerical data; D008297:Male; D009313:National Health Programs / Q000706:statistics & numerical data*; D010343:Patient Admission / Q000706:statistics & numerical data; D012959:Socioeconomic Factors; D013624:Taiwan