目的：探討台灣民眾失智症標準化盛行率及年代趨勢之變化。
方法：本研究利用我國「衛生福利部統計處」公告 2011-2020 年「身心障礙者福
利」之「身心障礙人數按類別及年齡別分」資料，以每年約 2,300 萬人為研究對
象，以 2011 年之年中人口數做為標準人口，計算失智症者之性別年齡標準化盛行
率，透過 EXCEL 2016 進行資料彙整與描述性分析，再以 Cytel Studio 8 進行年代
線性趨勢之檢定。
結果：卜瓦松迴歸結果顯示，在年齡層方面，2011 年至 2020 年間失智症者各年齡
層標準化盛行率 0-44 歲呈現下降趨勢，45-64 歲與 65 歲以上呈現上升趨勢。在各
年齡層之性別分層方面，0-44 歲男、女性標準化盛行率呈現下降趨勢，45-64 歲與
65 歲以上男、女性標準化盛行率呈現上升趨勢，以上均達到統計上之顯著水準。
結論：45 歲以上標準化盛行率呈現上升趨勢，台灣失智症患者有年輕化之隱憂。
建議衛生主管機關，加強失智症預防宣導，喚起民眾對失智症的重視。

Objectives: To explore the standardized prevalence and linear trend of dementia among
Taiwanese people.
Methods: The data came from the “Number of People with Disabilities by Category and
Age” in the “Welfare for Persons with Disabilities” announced by the “Statistical Office
of the Ministry of Health and Welfare” in Taiwan from 2011 to 2020. About 23 million
people are studied each year .Using the mid-year population in 2011 as the standard
population, the gender and age-standardized prevalence of dementia were calculated. Data
aggregation and descriptive analysis with Excel 2016 software, and linear trend testing
was performed with Cytel Studio 8 software.
Results: According to the results of the Poisson regression test, in terms of age groups,
the standardized prevalence rate of dementia patients in each age group from 2011 to
2020 “0-44 years old” showed a downward trend, while “45-64 years old” and “65 years
old and above” showed an upward trend. In terms of gender stratification of each age
group, the standardized prevalence rates of “0-44 years old” men and women showed a
downward trend, and the standardized prevalence rates of “45-64 years old” and “over 65
years old” men and women showed an upward trend reaching a statistically significant
level.
Conclusions: The prevalence of standardization over the age of 45 is on the rise, and
the risk exists of Taiwanese dementia patients becoming younger. It is recommended that
the competent authority for healthcare strengthen its publicity on dementia prevention and
raise the public’s awareness of dementia.