Table 2.

Crude and age-standardized prevalence of hypertension, 1998–2021

Year	Crude prevalence of hypertension, %						Age-standardized prevalence of hypertension, %a
	Adults aged 20 years or older			Adults aged 30 years or older			Adults aged 20 years or older			Adults aged 30 years or older
	Total	Male	Female	Total	Male	Female	Total	Male	Female	Total	Male	Female
1998	25.1	28.5	22.1	29.7	32.0	27.6	26.0	29.6	22.3	30.7	33.4	27.4
2001	26.0	30.7	22.7	29.8	34.4	26.6	23.6	28.4	20.2	28.5	33.1	25.3
2005	22.9	25.5	20.4	28.1	30.9	25.4	22.7	26.1	18.9	28.0	31.5	23.8
2007	20.4	21.5	19.3	25.0	26.4	23.7	19.7	21.7	17.3	24.4	26.7	21.5
2008	22.7	23.5	21.9	27.6	28.5	26.6	21.4	23.2	19.1	26.5	28.5	24.0
2009	23.4	25.9	20.9	28.2	31.2	25.3	21.4	25.2	17.4	26.5	30.8	21.9
2010	24.1	25.3	23.0	28.9	30.1	27.7	21.7	24.1	18.8	26.8	29.3	23.8
2011	26.5	29.8	23.3	30.8	33.9	27.8	23.9	28.6	18.8	28.4	32.8	23.6
2012	26.7	28.4	25.1	31.5	33.3	29.8	23.8	26.9	20.3	28.9	32.1	25.2
2013	25.7	28.9	22.8	30.4	34.2	26.9	22.4	26.9	17.7	27.2	32.4	22.1
2014	24.3	26.4	22.2	28.9	31.8	26.2	20.5	24.1	16.6	25.4	29.7	20.9
2015	27.0	29.5	24.5	32.0	35.1	29.1	22.5	26.7	18.2	27.8	32.6	22.9
2016	28.5	31.9	25.1	33.5	37.7	29.4	23.7	28.6	18.4	29.1	35.0	22.9
2017	26.9	30.4	23.5	31.2	35.0	27.6	22.3	27.4	16.9	26.9	32.3	21.3
2018	28.8	31.5	26.0	33.3	36.4	30.4	23.5	28.0	18.6	28.3	33.2	23.1
2019	28.4	29.7	27.0	32.9	34.7	31.2	22.5	25.9	18.8	27.2	31.1	22.8
2020	29.4	33.5	25.4	34.2	38.9	29.7	23.3	29.1	17.0	28.3	34.9	21.3
2021	28.4	30.4	26.4	33.2	35.8	30.7	21.8	25.7	17.4	26.8	31.5	21.7

^aAge-standardized prevalence was calculated using the 2005 population projections for Korea