TABLE 3.

Surveys in Emigrants and in General In‐Country Populations Included in the Meta‐Analyses by World Region

World Region	FB Living in USA, 2018	Total No. of Surveys	Surveys by Date				Total Sample No.	Survey Sample Composition by Sex
			Before 1990	1990‐1999	2000‐2009	2010‐2019		Males	Females	Sex Not Specified
All surveys
Asia	14,785,266	1,685	310	395	637	343	106,772,038	29,956,751	63,921,096	12,894,191
Americas	24,410,150	286	51	128	81	26	2,868,724	101,004	334,515	2,433,205
Oceania	297,510	62	28	15	18	1	77,311	4,529	37,315	35,467
Africa	2,575,550	578	165	115	123	175	632,984	251,468	261,742	119,774
Europe	5,894,567	189	42	56	65	26	1,642,136	50,162	526,312	1,065,662
All regions	47,963,043	2,800	596	709	924	571	111,993,193	30,363,914	65,080,980	16,548,299
Surveys in emigrants from country of origin to USA and elsewhere
Asia	14,785,266	305	58	41	135	71	994,475	183,971	371,223	439,281
Americas	24,410,150	27	11	3	11	2	37,033	278	3,074	33,681
Oceania	297,510	11	1	3	7	—	45,470	—	14,003	31,467
Africa	2,575,550	66	9	8	21	28	54,837	5,422	13,277	36,138
Europe	5,894,567	48	4	20	14	10	29,768	2,483	8,906	18,379
All regions	47,963,043	457	83	75	188	111	1,161,583	192,154	410,483	558,946
Surveys in general populations living in country of origin
Asia	14,785,266	1,380	252	354	502	272	105,777,563	29,772,780	63,549,873	12,454,910
Americas	24,410,150	259	40	125	70	24	2,831,691	100,726	331,441	2,399,524
Oceania	297,510	51	27	12	11	1	31,841	4,529	23,312	4,000
Africa	2,575,550	512	156	107	102	147	578,147	246,046	248,465	83,636
Europe	5,894,567	141	38	36	51	16	1,612,368	47,679	517,406	1,047,283
All regions	47,963,043	2,343	513	634	736	460	110,831,610	30,171,760	64,670,497	15,989,353

Northern America = FB from Canada and Bermuda living in the USA.

For Japan, Northern America, Australia, New Zealand, and Southern, Northern, and Western Europe, which have low CHB rates and relatively modest numbers of emigrants to the USA, rates from reviews were used instead of rates from systematic review and meta‐analyses. Male‐specific data and female‐specific data from the same survey were entered separately and counted as two surveys.

Results for individual countries are available in Supporting Table S4 (Supporting Information).