G. Buy, Calabet; V Calès; L Cany Carles; R Cayla, J J Carles; B

J. Dost, A deMascarel; B Debenes; D Delvert Dromer; V Dubuisson; F Dumas; V Dumora, C Deret; D C E Echinard

P. Ledaguenel and ;. Machané, Magne; F Magnien; P Mahé, E

C. Bordeaux and F. , Received: 13, 2011.

R. 1. Belot, A. Grosclaude, P. Bossard, N. Jougla, E. Benhamou et al., Cancer incidence and mortality in France over the period 1980???2005, Revue d'??pid??miologie et de Sant?? Publique, vol.56, issue.3, pp.159-175, 1980.
DOI : 10.1016/j.respe.2008.03.117

URL : https://hal.archives-ouvertes.fr/hal-00538673

P. Kanavos and W. Schurer, The dynamics of colorectal cancer management in 17 countries, The European Journal of Health Economics, vol.16, issue.S1, pp.115-129
DOI : 10.1007/s10198-009-0201-2

K. Augestad, R. Lindsetmo, J. Stulberg, H. Reynolds, A. Senagore et al., International Preoperative Rectal Cancer Management: Staging, Neoadjuvant Treatment, and Impact of Multidisciplinary Teams, World Journal of Surgery, vol.62, issue.7, pp.2689-2700, 2010.
DOI : 10.1007/s00268-010-0738-3

K. Bouhier, J. Maurel, H. Lefevre, M. Bouin, D. Arsene et al., Changing practices for diagnosis and treatment of colorectal cancer in calvados: 1990-1999, Gastroent??rologie Clinique et Biologique, vol.28, issue.4, pp.371-376, 2004.
DOI : 10.1016/S0399-8320(04)94938-X

J. Phelip, G. Launoy, M. Colonna, P. Grosclaude, M. Velten et al., Regional variations in management of rectal cancer in France, Gastroent??rologie Clinique et Biologique, vol.28, issue.4, pp.378-383, 2004.
DOI : 10.1016/S0399-8320(04)94939-1

J. Phelip, P. Grosclaude, G. Launoy, M. Colonna, A. Danzon et al., Are there regional differences in the management of colon cancer in France?, European Journal of Cancer Prevention, vol.14, issue.1, pp.31-37, 2005.
DOI : 10.1097/00008469-200502000-00005

J. Wennberg, Time to tackle unwarranted variations in practice, BMJ, vol.342, issue.mar17 3, p.1513, 2011.
DOI : 10.1136/bmj.d1513

J. Grimshaw and I. Russell, Effect of clinical guidelines on medical practice: a systematic review of rigorous evaluations, The Lancet, vol.342, issue.8883, pp.1317-1322, 1993.
DOI : 10.1016/0140-6736(93)92244-N

L. Wennekes, P. Ottevanger, J. Raemaekers, H. Schouten, M. De-kok et al., Development and measurement of guidelinebased indicators for patients with non-Hodgkin's lymphoma, J Clin Oncol, 2011.

G. Chang, M. Rodriguez-bigas, J. Skibber, and V. Moyer, Lymph Node Evaluation and Survival After Curative Resection of Colon Cancer: Systematic Review, JNCI Journal of the National Cancer Institute, vol.99, issue.6, pp.433-441, 2007.
DOI : 10.1093/jnci/djk092

S. Wong, J. H. Hollenbeck, B. Morris, A. Baser, O. Birkmeyer et al., Hospital Lymph Node Examination Rates and Survival After Resection for Colon Cancer, JAMA, vol.298, issue.18, pp.2149-2154, 2007.
DOI : 10.1001/jama.298.18.2149

J. Phelip, F. Molinie, P. Delafosse, G. Launoy, B. Tretarre et al., A population-based study of adjuvant chemotherapy for stage-II and -III colon cancers, Gastroent??rologie Clinique et Biologique, vol.34, issue.2, pp.144-149, 2010.
DOI : 10.1016/j.gcb.2009.08.012

URL : https://hal.archives-ouvertes.fr/hal-00486369

R. Prosnitz, M. Patwardhan, G. Samsa, C. Mantyh, D. Fisher et al., Quality measures for the use of adjuvant chemotherapy and radiation therapy in patients with colorectal cancer, Cancer, vol.24, issue.10, pp.2352-2360, 2006.
DOI : 10.1002/cncr.22278

S. Wong and J. Birkmeyer, Lymph Node Examination Rate, Survival Rate, and Quality of Care in Colon Cancer???Reply, JAMA, vol.299, issue.8, pp.897-898, 2008.
DOI : 10.1001/jama.299.8.897

D. Hosmer and S. Lemeshow, Applied logistic regression, 1989.
DOI : 10.1002/0471722146

N. Mitton, M. Colonna, B. Trombert, F. Olive, F. Gomez et al., A Suitable Approach to Estimate Cancer Incidence in Area without Cancer Registry, Journal of Cancer Epidemiology, vol.28, issue.4, pp.4189681471-2407297, 2011.
DOI : 10.1016/j.healthplace.2005.08.005

URL : https://hal.archives-ouvertes.fr/hal-00698065

D. Cronin, L. Harlan, A. Potosky, L. Clegg, J. Stevens et al., Patterns of Care for Adjuvant Therapy in a Random Population-Based Sample of Patients Diagnosed with Colorectal Cancer, The American Journal of Gastroenterology, vol.87, issue.1, pp.2308-2318, 2006.
DOI : 10.1111/j.1572-0241.2003.07448.x

J. Jessup, A. Stewart, F. Greene, and B. Minsky, Adjuvant Chemotherapy for Stage III Colon Cancer, JAMA, vol.294, issue.21, pp.2703-2711, 2005.
DOI : 10.1001/jama.294.21.2703

C. Lin, M. Charlton, J. Meza, C. Enke, F. Loberiza et al., Temporal and Regional Variations in the Use of Preoperative Radiation Therapy for Rectal Cancer, American Journal of Clinical Oncology, vol.33, issue.5, pp.443-447, 2010.
DOI : 10.1097/COC.0b013e3181b4b175

N. Baxter, D. Virnig, D. Rothenberger, A. Morris, J. Jessurun et al., Lymph Node Evaluation in Colorectal Cancer Patients: A Population-Based Study, JNCI Journal of the National Cancer Institute, vol.97, issue.3, pp.219-225, 2005.
DOI : 10.1093/jnci/dji020

K. Bilimoria, A. Stewart, B. Palis, D. Bentrem, M. Talamonti et al., Adequacy and Importance of Lymph Node Evaluation for Colon Cancer in the Elderly, Journal of the American College of Surgeons, vol.206, issue.2, pp.247-254, 2008.
DOI : 10.1016/j.jamcollsurg.2007.07.044

M. Wichmann, C. Muller, G. Meyer, T. Strauss, H. Hornung et al., Effect of Preoperative Radiochemotherapy on Lymph Node Retrieval After Resection of Rectal Cancer, Archives of Surgery, vol.137, issue.2, pp.206-210, 2002.
DOI : 10.1001/archsurg.137.2.206

B. Morcos, B. Baker, M. Al, H. Haddad, and S. Hashem, Lymph node yield in rectal cancer surgery: Effect of preoperative chemoradiotherapy, European Journal of Surgical Oncology (EJSO), vol.36, issue.4, pp.345-349, 2010.
DOI : 10.1016/j.ejso.2009.12.006

K. Bilimoria, A. Stewart, S. Edge, and C. Ko, Lymph Node Examination Rate, Survival Rate, and Quality of Care in Colon Cancer, JAMA, vol.299, issue.8, pp.896-898, 2008.
DOI : 10.1001/jama.299.8.896-a

E. Peters, I. D. Nagtegaal, V. Van-krieken, and J. , Lymph Node Examination Rate, Survival Rate, and Quality of Care in Colon Cancer, JAMA, vol.299, issue.8, pp.896-897, 2008.
DOI : 10.1001/jama.299.8.896-b

V. Quipourt, V. Jooste, V. Cottet, J. Faivre, and A. Bouvier, Comorbidities Alone Do Not Explain the Undertreatment of Colorectal Cancer in Older Adults: A French Population-Based Study, Journal of the American Geriatrics Society, vol.106, issue.4, pp.694-698, 2011.
DOI : 10.1111/j.1532-5415.2011.03334.x

N. Keating, M. Landrum, C. Klabunde, R. Fletcher, S. Rogers et al., Adjuvant Chemotherapy for Stage III Colon Cancer: Do Physicians Agree About the Importance of Patient Age and Comorbidity?, Journal of Clinical Oncology, vol.26, issue.15, pp.202532-2537, 2008.
DOI : 10.1200/JCO.2007.15.9434

M. Winget, S. Hossain, Y. Yasui, and A. Scarfe, Characteristics of patients with stage III colon adenocarcinoma who fail to receive guideline-recommended treatment, Cancer, vol.86, issue.20, pp.4849-4856, 2010.
DOI : 10.1002/cncr.25250

A. Figueredo, M. Coombes, and S. Mukherjee, Adjuvant therapy for completely resected stage II colon cancer, Cochrane Database Syst Rev, p.5390, 2008.

O. Connor, E. Greenblatt, D. Loconte, N. Gangnon, R. Liou et al., Adjuvant Chemotherapy for Stage II Colon Cancer With Poor Prognostic Features, Journal of Clinical Oncology, vol.29, issue.25, pp.3381-3388, 2011.
DOI : 10.1200/JCO.2010.34.3426

M. Leonardi, M. Mcgory, and C. Ko, Quality of Care Issues in Colorectal Cancer, Clinical Cancer Research, vol.13, issue.22, pp.6897-6902, 2007.
DOI : 10.1158/1078-0432.CCR-07-1123

K. Bilimoria, D. Bentrem, A. Stewart, M. Talamonti, D. Winchester et al., Lymph Node Evaluation as a Colon Cancer Quality Measure: A National Hospital Report Card, JNCI Journal of the National Cancer Institute, vol.100, issue.18, pp.1310-1317, 2008.
DOI : 10.1093/jnci/djn293

E. Alter, J. Phelip, J. Guilhot, M. Matysiak, M. Vermorel et al., Adjuvant chemotherapy for stage II colon cancer: influence of care structures?? characteristics on a controversial clinical practice, European Journal of Gastroenterology & Hepatology, vol.19, issue.11, pp.995-1001, 2007.
DOI : 10.1097/MEG.0b013e3282e1c5b7

A. Bouvier, E. Bauvin, A. Danzon, P. Grosclaude, P. Delafosse et al., Place of multidisciplinary consulting meetings and clinical trials in the management of colorectal cancer in France in 2000, Gastroent??rologie Clinique et Biologique, vol.31, issue.3, pp.286-291, 2000.
DOI : 10.1016/S0399-8320(07)89375-4

URL : https://hal.archives-ouvertes.fr/hal-00492899

E. Morris, R. Haward, M. Gilthorpe, C. Craigs, and D. Forman, The impact of the Calman???Hine report on the processes and outcomes of care for Yorkshire's colorectal cancer patients, British Journal of Cancer, vol.1999, issue.8, pp.979-985, 2006.
DOI : 10.1002/bjs.4085

A. Carsin, L. Sharp, D. Cronin-fenton, A. Ceilleachair, and H. Comber, Inequity in colorectal cancer treatment and outcomes: a population-based study, British Journal of Cancer, vol.33, issue.2
DOI : 10.1002/(SICI)1097-0142(19980601)82:11<2123::AID-CNCR6>3.3.CO;2-N

O. Dejardin, C. Herbert, M. Velten, A. Buemi, F. Menegoz et al., Social and geographical factors influencing the delay in treatment for colorectal cancer, British Journal of Cancer, vol.90, pp.1751-1752, 2004.
DOI : 10.1038/sj.bjc.6602170

O. Dejardin, E. Ruault, V. Jooste, C. Pornet, V. Bouvier et al., Volume of surgical activity and lymph node evaluation for patients with colorectal cancer in France, Digestive and Liver Disease, vol.44, issue.3, pp.261-267, 2012.
DOI : 10.1016/j.dld.2011.10.003

D. Hodgson, C. Fuchs, and J. Ayanian, Impact of Patient and Provider Characteristics on the Treatment and Outcomes of Colorectal Cancer, JNCI Journal of the National Cancer Institute, vol.93, issue.7, pp.501-515, 2001.
DOI : 10.1093/jnci/93.7.501

J. Birkmeyer, Y. Sun, S. Wong, and T. Stukel, Hospital Volume and Late Survival After Cancer Surgery, Annals of Surgery, vol.245, issue.5, pp.777-783, 2007.
DOI : 10.1097/01.sla.0000252402.33814.dd

M. Mccarthy, P. Datta, C. Sherlaw-johnson, M. Coleman, and B. Rachet, Is the performance of cancer services influenced more by hospital factors or by specialization?, Journal of Public Health, vol.30, issue.1, pp.69-74, 2008.
DOI : 10.1093/pubmed/fdm081

N. Petrelli, Not Just Another Article on Cancer Surgery Volume and Patient Outcomes, Journal of Clinical Oncology, vol.26, issue.28, pp.4530-4531, 2008.
DOI : 10.1200/JCO.2008.17.4219

. Ministère-de-la-santé-et-des-solidarités, Seuils d'activité minimale annuelle applicables à l'activité de soins de traitement du cancer, pp.29-32

. Pélissier, Quality indicators for colorectal cancer surgery and care according to patient-, tumor-, and hospital-related factors, BMC Cancer, vol.26, issue.26, p.297, 2012.
DOI : 10.1200/JCO.2008.17.4219