G. Benke, M. Sim, L. Fritschi, G. Aldred, A. Forbes et al., Comparison of Occupational Exposure Using Three Different Methods: Hygiene Panel, Job Exposure Matrix (JEM), and Self Reports, Applied Occupational and Environmental Hygiene, vol.16, issue.1, pp.84-91, 2001.
DOI : 10.1080/104732201456168

M. Gillen, I. Yen, and L. Trupin, The association of socioeconomic status and psychosocial and physical workplace factors with musculoskeletal injury in hospital workers, American Journal of Industrial Medicine, vol.46, issue.4, pp.245-260
DOI : 10.1002/ajim.20429

I. Niedhammer, J. Chastang, S. David, and C. Kelleher, The contribution of occupational factors to social inequalities in health: Findings from the national French SUMER survey, Social Science & Medicine, vol.67, issue.11, pp.1870-1881, 2008.
DOI : 10.1016/j.socscimed.2008.09.007

M. Melchior, N. Krieger, I. Kawachi, L. Berkman, I. Niedhammer et al., Work Factors and Occupational Class Disparities in Sickness Absence: Findings From the GAZEL Cohort Study, American Journal of Public Health, vol.95, issue.7, pp.1206-1212, 2005.
DOI : 10.2105/AJPH.2004.048835

X. He and D. Baker, Differences in leisure-time, household, and work-related physical activity by race, ethnicity, and education, Journal of General Internal Medicine, vol.163, issue.3, pp.259-266, 2005.
DOI : 10.1111/j.1525-1497.2005.40198.x

S. Plouvier, A. Leclerc, J. Chastang, S. Bonenfant, and M. Goldberg, Socioeconomic position and low-back pain ??? the role of biomechanical strains and psychosocial work factors in the GAZEL cohort, Scandinavian Journal of Work, Environment & Health, vol.35, issue.6, pp.429-436, 2009.
DOI : 10.5271/sjweh.1353
URL : https://hal.archives-ouvertes.fr/inserm-00426434

R. Schoeni, L. Martin, P. Andreski, and V. Freedman, Persistent and Growing Socioeconomic Disparities in Disability Among the Elderly: 1982???2002, American Journal of Public Health, vol.95, issue.11, pp.2065-2070, 2005.
DOI : 10.2105/AJPH.2004.048744

A. Descatha, Y. Roquelaure, and S. Caroly, Self-administered questionnaire and direct observation by checklist: Comparing two methods for physical exposure surveillance in a highly repetitive tasks plant Kilbom A. Assessment of physical exposure in relation to work-related musculoskeletal disorders--what information can be obtained from systematic observations?, Applied Ergonomics. Scandinavian Journal of Work Environment & Health, vol.4020, issue.10, pp.194-19830, 1994.

G. Li and P. Buckle, Current techniques for assessing physical exposure to work-related musculoskeletal risks, with emphasis on posture-based methods Burdorf A, van der Beek A. Exposure assessment strategies for work-related risk factors for musculoskeletal disorders, Ergonomics. Scandinavian Journal of Work Environment & Health, vol.4225, issue.12 4, pp.674-69525, 1999.

J. Sluiter, K. Rest, and M. Frings-dresen, Criteria document for evaluating the work-relatedness of upper-extremity musculoskeletal disorders, Scandinavian Journal of Work, Environment & Health, vol.27, issue.1, pp.1-102, 2001.
DOI : 10.5271/sjweh.637

S. Stock, R. Fernandes, A. Delisle, and N. Vezina, Reproducibility and validity of workers??? self-reports of physical work demands, Scandinavian Journal of Work, Environment & Health, vol.31, issue.6, pp.409-437, 2005.
DOI : 10.5271/sjweh.947

B. Gardner, A. Dale, L. Vandillen, A. Franzblau, and B. Evanoff, Predictors of upper extremity symptoms and functional impairment among workers employed for 6 months in a new job, American Journal of Industrial Medicine, vol.15, issue.12, pp.932-940, 2008.
DOI : 10.1002/ajim.20625

C. Ha, Y. Roquelaure, A. Leclerc, A. Touranchet, M. Goldberg et al., The French Musculoskeletal Disorders Surveillance Program: Pays de la Loire network, Occupational and Environmental Medicine, vol.66, issue.7, pp.471-479, 2009.
DOI : 10.1136/oem.2008.042812
URL : https://hal.archives-ouvertes.fr/inserm-00368464

R. Shiri, E. Viikari-juntura, H. Varonen, and M. Heliovaara, Prevalence and Determinants of Lateral and Medial Epicondylitis: A Population Study, American Journal of Epidemiology, vol.164, issue.11, pp.1065-1074, 2006.
DOI : 10.1093/aje/kwj325

M. Goldberg, A. Leclerc, and S. Bonenfant, Cohort profile: the GAZEL Cohort Study Long-term effects of biomechanical exposure on severe knee pain in the Gazel cohort, Int J Epidemiol. Scandinavian Journal of Work Environment & Health, vol.3637, issue.19, pp.32-3937, 2007.

H. Devon, M. Block, and P. Moyle-wright, Psychometric Toolbox for Testing Validity and Reliability 21. Loo R. A caveat on using single-item versus multiple-item scales, Journal of Nursing Scholarship. Journal of Managerial Psychology, vol.3917, pp.155-16468, 2002.

C. Nordander, K. Ohlsson, and I. Balogh, Gender differences in workers with identical repetitive industrial tasks: exposure and musculoskeletal disorders DeVellis R. Scale Development: Theory and Applications Possible bias from rating behavior when subjects rate both exposure and outcome Intrinsic/extrinsic measurement: I/E-revised and singleitem scales, International Archives of Occupational and Environmental Health. Scandinavian Journal of Work Environment and Health. Journal for the Scientific Study of Religion, vol.812328, issue.25, pp.939-947370, 1989.

J. Wanous, A. Reichers, M. Hudy, B. De-zwart, J. Broersen et al., Overall job satisfaction: How good are single-item measures? Musculoskeletal complaints in the Netherlands in relation to age, gender and physically demanding work Keogh E, Herdenfeldt M. Gender, coping and the perception of pain Exposure assessment in ergonomic epidemiology: is there something specific to the assessment of biomechanical exposures? Occupational and Environmental Medicine, Journal of Applied Psychology. International Archives of Occupational and Environmental Health. Pain, vol.82709762, issue.29, pp.247-252352, 1997.

B. Gardner, D. Lombardi, A. Dale, A. Franzblau, B. Evanoff et al., Reliability of job-title based physical work exposures for the upper extremity: comparison to self-reported and observed exposure estimates. Occupational and Environmental Medicine A comparison of methods for the assessment of postural load and duration of computer use Selected questions on biomechanical exposures for surveillance of upper-limb work-related musculoskeletal disorders, Occupational and Environmental Medicine. International Archives of Occupational and Environmental Health, vol.676181, issue.32, pp.538-5471027, 2004.