L. Mokkink, C. Terwee, D. Patrick, J. Alonso, P. Stratford et al., The COSMIN checklist for assessing the methodological quality of studies on measurement properties of health status measurement instruments: an international Delphi study, Quality of Life Research, vol.41, issue.4, pp.539-588, 2010.
DOI : 10.1007/s11136-010-9606-8

M. Boers, J. Kirwan, G. Wells, D. Beaton, L. Gossec et al., Developing Core Outcome Measurement Sets for Clinical Trials: OMERACT Filter 2.0, Journal of Clinical Epidemiology, vol.67, issue.7, pp.745-53, 2014.
DOI : 10.1016/j.jclinepi.2013.11.013

T. Kvien, T. Heiberg, and K. Hagen, Minimal clinically important improvement/difference (MCII/MCID) and patient acceptable symptom state (PASS): what do these concepts mean?, Annals of the Rheumatic Diseases, vol.66, issue.Supplement 3
DOI : 10.1136/ard.2007.079798

M. Roland and R. Morris, A Study of the Natural History of Back Pain, Spine, vol.8, issue.2, pp.141-145, 1976.
DOI : 10.1097/00007632-198303000-00004

J. Coste, J. Parc, . Le, E. Berge, G. Delecoeuillerie et al., [French validation of a disability rating scale for the evaluation of low back pain (EIFEL questionnaire)], Rev Rhum Ed Fr, vol.60, pp.335-376, 1993.

G. Waddell, M. Newton, I. Henderson, D. Somerville, and C. Main, A Fear-Avoidance Beliefs

A. Rosenstiel and F. Keefe, The use of coping strategies in chronic low back pain patients: Relationship to patient characteristics and current adjustment, Pain, vol.17, issue.1, pp.33-44, 1983.
DOI : 10.1016/0304-3959(83)90125-2

S. Irachabal, M. Koleck, N. Rascle, and M. Bruchon-schweitzer, Strat??gies de coping des patients douloureux??: adaptation fran??aise du coping strategies questionnaire (CSQ-F), L'Enc??phale, vol.34, issue.1, pp.47-53, 2008.
DOI : 10.1016/j.encep.2006.11.002

R. Snaith and A. Zigmond, The hospital anxiety and depression scale., BMJ, vol.292, issue.6516, pp.361-370, 1983.
DOI : 10.1136/bmj.292.6516.344

. Anon, Déclaration de Helsinki -Principes éthiques aplicables aux recherches médicales chez l'être humain, 1964.

C. Huriet and F. Sérusclat, Loi n°88-1138 du 20 décembre 1988 relative à la protection des personnes qui se prêtent à des recherches biomédicales, 1988.

B. Everitt and D. Howell, Encyclopedia of Statistics in Behavioral Science, 2005.
DOI : 10.1002/0470013192

S. Johnson, Hierarchical clustering schemes, Psychometrika, vol.58, issue.4, pp.241-254, 1967.
DOI : 10.1007/BF02289588

L. Cronbach, Coefficient alpha and the internal structure of tests, Psychometrika, vol.8, issue.3, pp.297-334, 1951.
DOI : 10.1007/BF02310555

J. Cohen, A Coefficient of Agreement for Nominal Scales, Educational and Psychological Measurement, vol.20, issue.1, pp.27-46, 1960.
DOI : 10.1177/001316446002000104

F. Bailly, V. Foltz, S. Rozenberg, B. Fautrel, and L. Gossec, SAT0403???Patients with Chronic Low Back Pain Develop Over Time Positive Coping Strategies Include Striving for Normality, Dealing with Pain, Having High Levels of Physical Activity and Maintaining Social Connections: A Qualitative Study., Annals of the Rheumatic Diseases, vol.72, issue.Suppl 3, pp.719-719, 2014.
DOI : 10.1136/annrheumdis-2013-eular.2127

L. Gossec, M. Wit, . De, U. Kiltz, J. Braun et al., A patient-derived and patient-reported outcome measure for assessing psoriatic arthritis: elaboration and preliminary validation of the Psoriatic Arthritis Impact of Disease (PsAID) questionnaire, a 13-country EULAR initiative, Annals of the Rheumatic Diseases, vol.72, issue.(Suppl 11), pp.1012-1021, 2014.
DOI : 10.1136/annrheumdis-2014-205207

T. Pincus, C. Swearingen, M. Bergman, and Y. Yazici, RAPID3 (Routine Assessment of Patient Index Data 3), a Rheumatoid Arthritis Index Without Formal Joint Counts for Routine Care: Proposed Severity Categories Compared to Disease Activity Score and Clinical Disease Activity Index Categories, The Journal of Rheumatology, vol.35, issue.11, p.2136, 2008.
DOI : 10.3899/jrheum.080182

J. Fries, P. Spitz, and D. Young, The dimensions of health outcomes: the health assessment questionnaire, disability and pain scales, J Rheumatol, vol.9, pp.789-93, 1982.