Table 1.

Prevalence of FPHL by age group according to epidemiological studies of different races.

Highly Admixed Population
Study	Region	Age Groups
		20–29 *	30–39 *	40–49 *	50–59 *	60–69 *	>70 *
2022, Tsutsui	Brazil	9	22	50	69	-	-
Caucasian
Study	Region	Age groups
		20–29 *	30–39 *	40–49 *	50–59 *	60–69 *	>70 *
2005, Gan	Australia	12	17	25	28	41	54
2001, Norwood	USA	3	17	16	23	25	29
2001, Birch	England	3	10	5	14	33	38
Asian
Study	Region	Age groups
		20–29 *	30–39 *	40–49 *	50–59 *	60–69 *	>70 *
2012, Su	Taiwan	-	6	10	12	13	15
2010, Wang	China	1	2	5	8	11	12
2008, Xu	China (Shanghai)	-	-	1	2	3	15
2001, Paik	South Korea	-	2	4	7	12	35

* Approximate prevalence of patients with FPHL in each age group.