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. Author manuscript; available in PMC: 2010 Jan 14.
Published in final edited form as: Contemp Drug Probl. 2009 Apr 1;36(1/2):nihpa126808.

Table 1.

The study countries and the sample sizes per country.

Country N men N women N total
Argentina 402 598 1000
Costa Rica 416 857 1273
Czech Republic 1244 1282 2526
Denmark 897 1133 2030
Finland 945 987 1932
Germany 3688 4459 8147
Hungary 1094 1198 2292
Iceland 1168 1271 2439
India 1508 1471 2979
Japan 1116 1138 2254
Nigeria 1114 956 2070
Norway 1034 1136 2170
Spain 894 956 1850
Sri Lanka 608 593 1201
Sweden 2656 2816 5472
Uganda 721 758 1479
UK 963 1038 2001
Uruguay 624 376 1000