Table 1.

Sociodemographic characteristics of study population^a

Characteristic	n	%
Sex
Female	41 255	50
Male	41 306	50
Age group, years
<5	986	1
5–13	4211	5
14–17	2518	3
18–24	11 889	14
25–34	28 407	34
35–44	19 773	24
45–54	8158	10
55–64	3675	5
>65	2944	4
GP registration status
Current	66 220	80
Deducted	16 341	20
Regionb
Asia	32 341	39
Europe	24 134	29
Africa	20 038	24
Latin America and the Caribbean	5958	7
Oceania	90	0.1
Subregionb
Eastern Europe	14 752	18
Southern Asia	14 446	18
Eastern Africa	11 926	14
Southern Europe	9382	11
Eastern Asia	7801	10
South-Eastern Asia	5544	7
Western Asia	4395	5
Western Africa	3854	5
Caribbean	3688	5
Southern Africa	2595	3
South America	1942	2
Northern Africa	1161	1
Middle Africa	502	0.6
Central America	328	0.4
Central Asia	155	0.2
Pacific Islands	90	0.1

^an = 82 561.

^bBased on the United Nations geographical categorisation and composition of each region and subregion.