M. Charlson, P. Pompei, and K. Ales, A new method of classifying prognostic comorbidity in longitudinal studies: Development and validation, Journal of Chronic Diseases, vol.40, issue.5, pp.373-383, 1987.
DOI : 10.1016/0021-9681(87)90171-8

N. Athienites, D. Miskulin, and G. Fernandez, Comorbidity Assessment in Hemodialysis and Peritoneal Dialysis Using the Index of Coexistent Disease, Seminars in Dialysis, vol.11, issue.5, pp.320-326, 2000.
DOI : 10.1046/j.1525-139x.2000.00095.x

E. Carey, L. Walter, and K. Lindquist, Development and validation of a functional morbidity index to predict mortality in community-dwelling elders, Journal of General Internal Medicine, vol.48, issue.10, pp.1027-1033, 2004.
DOI : 10.1111/j.1525-1497.2004.40016.x

E. Carey, K. Covinsky, and L. Lui, Prediction of Mortality in Community-Living Frail Elderly People with Long-Term Care Needs, Journal of the American Geriatrics Society, vol.109, issue.(5, pp.68-75, 2008.
DOI : 10.1111/j.1532-5415.2007.01496.x

S. Lee, K. Lindquist, and M. Segal, Development and Validation of a Prognostic Index for 4-Year Mortality in Older Adults, JAMA, vol.295, issue.7, pp.801-808, 2006.
DOI : 10.1001/jama.295.7.801

L. Walter, R. Brand, and S. Cousell, Development and Validation of a Prognostic Index for 1-Year Mortality in Older Adults After Hospitalization, JAMA, vol.285, issue.23, pp.2987-2994, 2001.
DOI : 10.1001/jama.285.23.2987

I. Khan, G. R. Edward, and N. , Influence of coexisting disease on survival on renal-replacement therapy, The Lancet, vol.341, issue.8842, pp.415-418, 1993.
DOI : 10.1016/0140-6736(93)93003-J

L. Wright, Survival in Patients With End-Stage Renal Disease, American Journal of Kidney Diseases, vol.17, issue.1, pp.25-28, 1991.
DOI : 10.1016/S0272-6386(12)80245-9

C. Couchoud, O. Moranne, and L. Frimat, Associations between comorbidities, treatment choice and outcome in the elderly with end-stage renal disease, Nephrology Dialysis Transplantation, vol.22, issue.11, pp.27-32, 2007.
DOI : 10.1093/ndt/gfm400

D. Joly, D. Anglicheau, and C. Alberti, Octogenarians Reaching End-Stage Renal Disease: Cohort Study of Decision-Making and Clinical Outcomes, Journal of the American Society of Nephrology, vol.14, issue.4, pp.1012-1021, 2003.
DOI : 10.1097/01.ASN.0000054493.04151.80

M. Kurella, K. Covinsky, and A. Collins, Octogenarians and Nonagenarians Starting Dialysis in the United States, Annals of Internal Medicine, vol.146, issue.3, pp.177-83, 2007.
DOI : 10.7326/0003-4819-146-3-200702060-00006

D. Lamping, N. Constantinovici, and P. Roderick, Clinical outcomes, quality of life, and costs in the North Thames Dialysis Study of elderly people on dialysis: a prospective cohort study, The Lancet, vol.356, issue.9241, pp.1543-50, 2000.
DOI : 10.1016/S0140-6736(00)03123-8

C. Ph, C. Ch, and M. Laville, Factors influencing survival in haemodialysis patients aged older than 75 years: 2.5-year outcome study, Am J Kidney Dis, vol.37, pp.997-1003, 2001.

A. Collins, E. Weindhandl, and J. Snyder, Comparison and Survival of Hemodialysis and Peritoneal Dialysis in the Elderly, Seminars in Dialysis, vol.15, issue.2, pp.98-102, 2002.
DOI : 10.1046/j.1525-139X.2002.00032.x

W. Winkelmayer, R. Glynn, and M. Mittleman, Comparing Mortality of Elderly Patients on Hemodialysis versus Peritoneal Dialysis: A Propensity Score Approach, Journal of the American Society of Nephrology, vol.13, issue.9, pp.2353-2362, 2002.
DOI : 10.1097/01.ASN.0000025785.41314.76

B. Barrett, P. Parfey, and J. Morgan, Prediction of early death in end-stage renal disease patients starting dialysis, American Journal of Kidney Diseases, vol.29, issue.2, pp.214-222, 1997.
DOI : 10.1016/S0272-6386(97)90032-9

B. Bradbury, R. Fissell, and A. J. , Predictors of Early Mortality among Incident US Hemodialysis Patients in the Dialysis Outcomes and Practice Patterns Study (DOPPS), Clinical Journal of the American Society of Nephrology, vol.2, issue.1, pp.89-99, 2007.
DOI : 10.2215/CJN.01170905

W. Metcalfe, I. Khan, and G. Prescott, Can we improve early mortality in patients receiving renal replacement therapy?, Kidney International, vol.57, issue.6, pp.2539-2545, 2000.
DOI : 10.1046/j.1523-1755.2000.00113.x

M. Soucie and W. Mcclellan, Early death in dialysis patients: risk factores and mpact on incidence and mortality rates, J AM Soc Nephrol, vol.7, pp.2169-2175, 1996.

L. Plantinga, N. Fink, and L. N. Early, Early, Intermediate, and Long-Term Risk Factors for Mortality in Incident Dialysis Patients: The Choices for Healthy Outcomes in Caring for ESRD (CHOICE) Study, American Journal of Kidney Diseases, vol.49, issue.6, pp.831-840, 2007.
DOI : 10.1053/j.ajkd.2007.03.017

C. Couchoud, B. Stengel, and P. Landais, The renal epidemiology and information network (REIN): a new registry for end-stage renal disease in France, Nephrology Dialysis Transplantation, vol.21, issue.2, pp.411-418, 2006.
DOI : 10.1093/ndt/gfi198
URL : https://hal.archives-ouvertes.fr/hal-00452918

D. Rubin, Multiple imputation for nonreponse in surveys, 1987.

R. Picard and K. Berk, Data splitting, Am Statistician, vol.44, pp.140-147, 1990.

J. Concato, Challenges in progonostic analysis . Cancer Suppl, pp.1607-1614, 2001.

M. Heymans, S. Van-buuren, and D. Knol, Variable selection under multiple imputation using the bootstrap in a prognostic study, BMC Medical Research Methodology, vol.53, issue.4, p.33, 2007.
DOI : 10.2307/2533961

J. Concato, A. Feinstein, and H. Th, The Risk of Determining Risk with Multivariable Models, Annals of Internal Medicine, vol.118, issue.3, pp.201-210, 1993.
DOI : 10.7326/0003-4819-118-3-199302010-00009

A. Justice, K. Covinsky, and J. Berlin, Assessing the Generalizability of Prognostic Information, Annals of Internal Medicine, vol.130, issue.6, pp.515-524, 1999.
DOI : 10.7326/0003-4819-130-6-199903160-00016

W. Winkelmayer, W. Owen, and R. Levin, A Propensity Analysis of Late Versus Early Nephrologist Referral and Mortality on Dialysis, Journal of the American Society of Nephrology, vol.14, issue.2, pp.486-492, 2003.
DOI : 10.1097/01.ASN.0000046047.66958.C3

M. Kessler, L. Frimat, and V. Panescu, Impact of nephrology referral on early and midterm outcomes in ESRD: EPid miologie de l Insuffisance REnale chronique terminale é

L. En, EPIREL): results of a 2-year, prospective, community-based study, Am J Kidney Dis, vol.42, pp.474-85, 2003.

A. Moss, shared decision-making in dialysis: the new RPA/ASN guideline on appropriate initiation and withdrawal of treatment, Am J Kidney Dis, vol.37, pp.1081-1091, 2001.

J. Galla, Clinical practice guideline on shared decision-making in the appropriate initiation of and withdrawal from dialysis, J Am Soc Nephrol, vol.11, pp.1340-1342, 2000.

T. Mccormick and B. Conley, Patients perspectives on dying and on the care of dying patients ', West J Med, vol.163, pp.236-243, 1995.

F. Murtagh, J. Marsh, and P. Donohoe, Dialysis or not? A comparative survival study of patients over 75 years with chronic kidney disease stage 5, Nephrology Dialysis Transplantation, vol.22, issue.7, pp.1955-1962, 2007.
DOI : 10.1093/ndt/gfm153

B. Birmel-É, M. Fran-ois-Ç, and J. Pengloan, Death after withdrawal from dialysis: the most common cause of death in a French dialysis population, Nephrology Dialysis Transplantation, vol.19, issue.3, pp.686-691, 2004.
DOI : 10.1093/ndt/gfg606

M. Lambie, H. Rayner, and L. Bragg-gresham, Starting and withdrawing haemodialysis--associations between nephrologists' opinions, patient characteristics and practice patterns (data from the Dialysis Outcomes and Practice Patterns Study), Nephrology Dialysis Transplantation, vol.21, issue.10, pp.2814-2820, 2006.
DOI : 10.1093/ndt/gfl339

S. Chandna, J. Schulz, and L. Ch, Is there a rationale for rationing chronic dialysis? A hospital based cohort study of factors affecting survival and morbidity, BMJ, vol.318, issue.7178, pp.217-223, 1999.
DOI : 10.1136/bmj.318.7178.217