E. Goldner, L. Hsu, P. Waraich, and J. Somers, Prevalence and incidence studies of schizophrenic disorders: a systematic review of the literature, Can J Psychiatry, vol.47, issue.9, pp.833-843, 2002.

M. Knapp, R. Mangalore, and J. Simon, The Global Costs of Schizophrenia, Schizophrenia Bulletin, vol.30, issue.2, pp.279-293, 2004.
DOI : 10.1093/oxfordjournals.schbul.a007078

F. Rouillon, M. Tou, G. Dansette, J. Benyaya, and P. Auquier, Some Aspects of the Cost of Schizophrenia in France, PharmacoEconomics, vol.11, issue.6, pp.578-594, 1997.
DOI : 10.2165/00019053-199711060-00006

P. Bebbington, M. Angermeyer, J. Azorin, T. Brugha, R. Kilian et al., The European Schizophrenia Cohort (EuroSC): a naturalistic prognostic and economic study, Soc Psychiatr Psychiatr Epidemiol, issue.9, pp.40707-717, 2005.

R. Spitzer, J. Williams, M. Gibbon, and M. First, The Structured Clinical Interview for DSM-III-R (SCID), Archives of General Psychiatry, vol.49, issue.8, pp.49624-629, 1992.
DOI : 10.1001/archpsyc.1992.01820080032005

A. Hawk, W. Carpenter, and J. Strauss, Diagnostic Criteria and Five-Year Outcome in Schizophrenia, Archives of General Psychiatry, vol.32, issue.3, pp.343-347, 1975.
DOI : 10.1001/archpsyc.1975.01760210077005

S. Kay, Positive-negative symptom assessment in schizophrenia: Psychometric issues and scale comparison, Psychiatric Quarterly, vol.46, issue.suppl. 7, pp.163-178, 1990.
DOI : 10.1007/BF01064966

S. Kay, A. Fiszbein, and L. Opler, The Positive and Negative Syndrome Scale (PANSS) for Schizophrenia, Schizophrenia Bulletin, vol.13, issue.2, pp.261-276, 1987.
DOI : 10.1093/schbul/13.2.261

R. Norman, A. Malla, C. L. Diaz, and F. , A study of the interrelationship between and comparative interrater reliability of the SAPS, SANS and PANSS, Schizophrenia Research, vol.19, issue.1, pp.73-85, 1996.
DOI : 10.1016/0920-9964(95)00055-0

D. Addington, J. Addington, and B. Schissel, A depression rating scale for schizophrenics, Schizophrenia Research, vol.3, issue.4, pp.247-251, 1990.
DOI : 10.1016/0920-9964(90)90005-R

D. Addington, J. Addington, E. Maticka-tyndale, and J. J. , Reliability and validity of a depression rating scale for schizophrenics, Schizophrenia Research, vol.6, issue.3, pp.201-208, 1992.
DOI : 10.1016/0920-9964(92)90003-N

A. Lehman, The effects of psychiatric symptoms on quality of life assessments among the chronic mentally ill, Evaluation and Program Planning, vol.6, issue.2, pp.143-151, 1983.
DOI : 10.1016/0149-7189(83)90028-9

G. Wagenaar, Indicateurs et systèmes d'information en santé mentale, J Eco Med, vol.11, pp.201-224, 1993.

L. Davies and M. Drummond, Economics and schizophrenia: the real cost, Br J Psychiatry, vol.25, pp.18-21, 1994.

B. Baltagi, Econometric analysis of panel data, 2001.

. Statacorp, Stata Statistical Software: Release 10. C. Station, 2007.

D. Brunetti, Prevalence of mental problems in rural population of Vaucluse: new and recapitulated data, Hyg Ment, vol.62, issue.1, pp.1-15, 1973.

H. Salize, R. Mccabe, J. Bullenkamp, L. Hansson, C. Lauber et al., Cost of treatment of schizophrenia in six European countries, Schizophrenia Research, vol.111, issue.1-3, pp.1-370, 2009.
DOI : 10.1016/j.schres.2009.03.027

J. Jerrell, R. Mcintyre, and A. Tripathi, Incidence and Costs of Cardiometabolic Conditions in Patients with Schizophrenia Treated with Antipsychotic Medications, Clinical Schizophrenia & Related Psychoses, vol.4, issue.3, pp.161-168, 2010.
DOI : 10.3371/CSRP.4.3.2