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. 2021 Sep 10;62(10):948–953. doi: 10.3349/ymj.2021.62.10.948

Table 4. Age-Standardized Prevalence of Dementia per 1000 Population from 2008 to 2016 Analyzed according to Sex among Patients ≥65 Years of Age.

Year Male Female Female-to-male prevalence ratio
Crude Standardized* Prevalence ratio Crude Standardized* Prevalence ratio
2008 22.1 (21.94–22.35) 22.1 (21.9–22.35) Reference 37.4 (37.22–37.65) 37.4 (37.22–37.65) Reference 1.37 (1.35–1.38)
2009 26.1 (25.89–26.33) 25.5 (25.32–25.75) 1.15 (1.14–1.17) 44.9 (44.62–45.09) 43.9 (43.71–44.17) 1.17 (1.16–1.18) 1.39 (1.37–1.40)
2010 30.4 (30.17–30.63) 29.1 (28.87–29.31) 1.31 (1.30–1.33) 53.1 (52.86–53.36) 50.7 (50.48–50.96) 1.35 (1.34–1.36) 1.40 (1.38–1.41)
2011 34.1 (33.82–34.29) 32.0 (31.76–32.21) 1.44 (1.43–1.46) 61.8 (61.55–62.08) 57.8 (57.52–58.02) 1.54 (1.53–1.55) 1.44 (1.43–1.45)
2012 36.7 (36.43–36.91) 33.8 (33.58–34.02) 1.53 (1.51–1.55) 68.3 (68.03–68.58) 62.7 (62.43–62.94) 1.68 (1.67–1.69) 1.46 (1.45–1.48)
2013 39.0 (38.79–39.27) 35.4 (35.15–35.59) 1.61 (1.59–1.63) 74.3 (74.01–74.57) 67.0 (66.7–67.21) 1.80 (1.79–1.81) 1.48 (1.47–1.49)
2014 41.0 (40.80–41.29) 36.5 (36.31–36.75) 1.66 (1.64–1.68) 79.4 (79.08–79.65) 70.1 (69.82–70.33) 1.89 (1.88–1.91) 1.50 (1.49–1.51)
2015 43.7 (43.48–43.96) 38.3 (38.11–38.54) 1.75 (1.73–1.76) 84.9 (84.59–85.17) 73.6 (73.32–73.83) 2.00 (1.98–2.01) 1.50 (1.49–1.51)
2016 46.5 (46.23–46.72) 39.8 (39.56–39.99) 1.81 (1.80–1.83) 91.0 (90.71–91.3) 77.0 (76.71–77.21) 2.11 (2.09–2.12) 1.50 (1.49–1.51)

The values in parentheses are the 95% confidence intervals.

*For estimation of age-standardized prevalence, the mid-year population of 2008 was used, Age-adjusted prevalence ratio.