Table 1.

Epidemiological studies assessing for DSM-IV 12-month prevalence rates of SAD

Study	Year	Country/Region	N	12-month Prevalence (%)
Vorcaro et al.[6]	2004	Brazil	1,037	9.1
Vicente et al. [5]	2006	Chile	2,978	6.4
Shen et al. [10]	2006	China	5,201	0.2
Alonso et al. [15]	2004	Europe	21,425	0.8
Lee et al. [8]	1980	Korea	5,100	0.6
Cho et al. [9]	2007	Korea	6,275	0.2
Kawakami et al. [11]	2005	Japan	1,663	0.8
Medina-Mora et al. [12]	2005	Mexico	5,826	1.7
Gujreje et al. [13]	2006	Nigeria	4,984	0.3
Williams et al. [14]	2008	South Africa	4,351	1.9
Hwu et al. [7]	1989	Taiwan	11,004	0.4
Kessler et al. [3]	1994	USA	8,098	7.9
Ruscio et al. [4]	2006	USA	9,282	7.1
Grant et al. [18]	2006	USA	43,093	2.8