H. Inc and H. Dialog, Integrated Benefits Institute Primary Care Network, Research Triangle Institute

. Ayerst, Plus One Health Management and Wyeth-Ayerst; and has had research support for his epidemiological studies from, Analysis Group Inc

J. Spijker, R. Graaf, R. Bijl, A. Beekman, J. Ormel et al., Functional disability and depression in the general population. Results from the Netherlands Mental Health Survey and Incidence Study (NEMESIS), Acta Psychiatrica Scandinavica, vol.4, issue.3, pp.208-214, 2004.
DOI : 10.1176/appi.ajp.158.10.1645

T. Üstün, J. Ayuso-mateos, S. Chatterji, C. Mathers, and C. Murray, Global burden of depressive disorders in the year 2000, The British Journal of Psychiatry, vol.184, issue.5, pp.386-392, 2004.
DOI : 10.1192/bjp.184.5.386

C. Murray and A. Lopez, Evidence-Based Health Policy---Lessons from the Global Burden of Disease Study, Science, vol.274, issue.5288, pp.740-743, 1996.
DOI : 10.1126/science.274.5288.740

C. Murray and A. Lopez, The Global Burden of Disease: A Comprehensive Assessment of Mortality and Disability from Diseases, Injuries, and Risk Factors in 1990 and Projected to, 1996.

M. Weissman, R. Bland, G. Canino, C. Faravelli, S. Greenwald et al., Cross-National Epidemiology of Major Depression and Bipolar Disorder, JAMA: The Journal of the American Medical Association, vol.276, issue.4, pp.293-299, 1996.
DOI : 10.1001/jama.1996.03540040037030

L. Robins, J. Helzer, J. Croughan, and K. Ratcliff, National Institute of Mental Health Diagnostic Interview Schedule, Archives of General Psychiatry, vol.38, issue.4, pp.381-389, 1981.
DOI : 10.1001/archpsyc.1981.01780290015001

L. Andrade, J. Caraveo-anduaga, P. Berglund, R. Bijl, E. Dragomericka et al., The epidemiology of major depressive episodes: results from the International Consortium of Psychiatric Epidemiology (ICPE) surveys, International Journal of Methods in Psychiatric Research, vol.109, issue.1, pp.3-21, 2003.
DOI : 10.1002/mpr.138

R. Kessler, H. Wittchen, J. Abelson, K. Mcgonagle, N. Schwarz et al., Methodological studies of the Composite International Diagnostic Interview (CIDI) in the US national comorbidity survey (NCS), Methodological studies of the Composite International Diagnostic Interview (CIDI) in the US National Comorbidity Survey, pp.33-55, 1998.
DOI : 10.1002/mpr.33

S. Moussavi, S. Chatterji, E. Verdes, A. Tandon, V. Patel et al., Depression, chronic diseases, and decrements in health: results from the World Health Surveys, The Lancet, vol.370, issue.9590, pp.851-858, 2007.
DOI : 10.1016/S0140-6736(07)61415-9

R. Kessler and T. Üstün, The World Mental Health (WMH) Survey Initiative version of the World Health Organization (WHO) Composite International Diagnostic Interview (CIDI), International Journal of Methods in Psychiatric Research, vol.26, issue.2, pp.93-121, 2004.
DOI : 10.1002/mpr.168

R. Kessler and T. Üstün, The WHO World Mental Health Surveys: Global Perspectives on the Epidemiology of Mental Disorders, 2008.

R. Kessler, H. Birnbaum, V. Shahly, E. Bromet, I. Hwang et al., Age differences in the prevalence and co-morbidity of DSM-IV major depressive episodes: results from the WHO World Mental Health Survey Initiative, Depression and Anxiety, vol.87, issue.4, pp.351-364, 2010.
DOI : 10.1002/da.20634

S. Van-de-velde, P. Bracke, and K. Levecque, Gender differences in depression in 23 European countries. Cross-national variation in the gender gap in depression, Social Science & Medicine, vol.71, issue.2, pp.305-313, 2010.
DOI : 10.1016/j.socscimed.2010.03.035

E. Bromet, S. Gluzman, V. Paniotto, C. Webb, N. Tintle et al., Epidemiology of psychiatric and alcohol disorders in Ukraine, Social Psychiatry and Psychiatric Epidemiology, vol.78, issue.Suppl 420, pp.40681-690, 2005.
DOI : 10.1007/s00127-005-0927-9

G. Simon, D. Goldberg, V. Korff, M. Ustun, and T. , Understanding crossnational differences in depression prevalence, Psychol Med, vol.32, issue.4, pp.585-594, 2002.

K. Demyttenaere, R. Bruffaerts, J. Posada-villa, I. Gasquet, V. Kovess et al., S: Prevalence, severity, and unmet need for treatment of mental disorders in the World Health Organization World Mental Health Surveys, JAMA, issue.21, pp.2912581-2590, 2004.

J. Haro, S. Arbabzadeh-bouchez, T. Brugha, G. De-girolamo, M. Guyer et al., Concordance of the Composite International Diagnostic Interview Version 3.0 (CIDI 3.0) with standardized clinical assessments in the WHO World Mental Health Surveys, International Journal of Methods in Psychiatric Research, vol.26, issue.4, pp.167-180, 2006.
DOI : 10.1002/mpr.196

J. Harkness, B. Pennell, A. Villar, N. Gebler, S. Aguilar-gaxiola et al., Translation procedures and translation assessment in the World Mental Health Survey Initiative. In The WHO World Mental Health Surveys: Global Perspectives on the Epidemiology of Mental Disorders, pp.91-113

V. Korff, M. Crane, P. Alonso, J. Vilagut, G. Angermeyer et al., Modified WHODAS-II provides valid measure of global disability but filter items increased skewness, J Clin Epidemiol, issue.11, pp.611132-1143, 2008.

D. Levinson, M. Lakoma, M. Petukhova, M. Schoenbaum, A. Zaslavsky et al., Associations of serious mental illness with earnings: results from the WHO World Mental Health surveys, The British Journal of Psychiatry, vol.197, issue.2, pp.114-121, 2010.
DOI : 10.1192/bjp.bp.109.073635

S. Lee, A. Tsang, J. Breslau, S. Aguilar-gaxiola, M. Angermeyer et al., Mental disorders and termination of education in high-income and low- and middle-income countries: epidemiological study, The British Journal of Psychiatry, vol.194, issue.5, pp.411-417, 2009.
DOI : 10.1192/bjp.bp.108.054841

K. Wolter, Introduction to Variance Estimation, 1985.

. Research-triangle-institute, SUDAAN: Professional Software for Survey Data Analysis [computer program]. Research Triangle Park, NC: Research Triangle Institute, 2002.

P. Ellis, The Essential Guide to Effect Sizes: Statistical Power, Meta-Analysis, and the Interpretation of Research Results, 2010.
DOI : 10.1017/CBO9780511761676

H. Koplewicz, A. Gurian, and K. Williams, The Era of Affluence and Its Discontents, Journal of the American Academy of Child & Adolescent Psychiatry, vol.48, issue.11, pp.1053-1055, 2009.
DOI : 10.1097/CHI.0b013e3181b8be5c

R. Wilkinson and K. Pickett, Income inequality and population health: A review and explanation of the evidence, Social Science & Medicine, vol.62, issue.7, pp.1768-1784, 2006.
DOI : 10.1016/j.socscimed.2005.08.036

S. Patten, Accumulation of major depressive episodes over time in a prospective study indicates that retrospectively assessed lifetime prevalence estimates are too low, BMC Psychiatry, vol.49, issue.4, p.19, 2009.
DOI : 10.1034/j.1600-0447.2000.102003178.x

J. Wells and L. Horwood, How accurate is recall of key symptoms of depression? A comparison of recall and longitudinal reports, Psychological Medicine, vol.34, issue.6, pp.1001-1011, 2004.
DOI : 10.1017/S0033291703001843

R. Kessler, H. Birnbaum, E. Bromet, I. Hwang, N. Sampson et al., Age differences in major depression: results from the National Comorbidity Survey Replication (NCS-R), Psychological Medicine, vol.58, issue.02, pp.225-237, 2010.
DOI : 10.1037/0882-7974.2.2.164

J. Riley, Estimates of regional and global life expectancy, Popul Dev Rev, vol.31, issue.3, pp.1800-2001537, 2005.

M. Tomlinson, A. Grimsrud, D. Stein, D. Williams, and L. Myer, The epidemiology of major depression in South Africa: results from the Bromet et al, BMC Medicine, vol.99, pp.901741-701590, 2011.

O. Gureje, R. Uwakwe, B. Oladeji, V. Makanjuola, and O. Esan, Depression in adult Nigerians: Results from the Nigerian Survey of Mental Health and Well-being, Journal of Affective Disorders, vol.120, issue.1-3, pp.1-3158, 2010.
DOI : 10.1016/j.jad.2009.04.030

O. Gureje, O. Adeyemi, N. Enyidah, M. Ekpo, O. Udofia et al., Mental disorders among adult Nigerians: risks, prevalence, and treatment. In The WHO World Mental Health Surveys: Global Perspectives on the Epidemiology of Mental Disorders, 2008.

D. Kebede and A. Alem, Major mental disorders in Addis Ababa, Ethiopia. II. Affective disorders, Acta Psychiatrica Scandinavica, vol.46, issue.Suppl, pp.18-23, 1999.
DOI : 10.1111/j.1600-0447.1999.tb10689.x

C. Benjet, Childhood adversities of populations living in low-income countries: prevalence, characteristics, and mental health consequences, Current Opinion in Psychiatry, vol.23, issue.4, pp.356-362, 2010.
DOI : 10.1097/YCO.0b013e32833ad79b

S. Chang, B. Hahm, J. Lee, M. Shin, H. Jeon et al., Cross-national difference in the prevalence of depression caused by the diagnostic threshold, Journal of Affective Disorders, vol.106, issue.1-2, pp.159-167, 2008.
DOI : 10.1016/j.jad.2007.07.023