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Work Ability Index as Tool to Identify Workers at Risk of Premature Work Exit

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Abstract

Purpose To investigate the Work Ability Index (WAI) as tool for identifying workers at risk of premature work exit in terms of disability pension, unemployment, or early retirement. Methods Prospective cohort study of 11,537 male construction workers (mean age 45.5 years), who completed the WAI at baseline and reported their work status (employed, unemployed, disability pension, or retired) after mean 2.3 years of follow-up. Associations between WAI scores and work status were investigated by multinomial logistic regression analysis. The ability of the WAI to discriminate between workers at high and low risk of premature work exit was analyzed by the area (AUC) under the receiver operating characteristic curve. Results 9,530 (83 %) construction workers had complete data for analysis. At follow-up, 336 (4 %) workers reported disability pension, 125 (1 %) unemployment, and 255 (3 %) retirement. WAI scores were prospectively associated with the risk of disability pension at follow-up, but not with the risk of unemployment and early retirement. The WAI showed fair discrimination to identify workers at risk of disability pension [AUC = 0.74; 95 % confidence interval (CI) 0.70–0.77]. The discriminative ability decreased with age from AUC = 0.78 in workers aged 30–39 years to AUC = 0.69 in workers ≥50 years of age. Discrimination failed for unemployment (AUC = 0.51; 95 % CI 0.47–0.55) and early retirement (AUC = 0.58; 95 % CI 0.53–0.61). Conclusions The WAI can be used to identify construction workers <50 years of age at increased risk of disability pension and invite them for preventive interventions.

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Notes

  1. Disability pension refers to individuals who after 2 years of sickness absence were deemed to be limited in work capacity.

  2. Unemployed refers to individuals who were discharged or were deemed after 2 years of sickness absence to not be limited in work capacity.

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Authors and Affiliations

  1. ArboNed Occupational Health Service, PO Box 85091, 3508 AB, Utrecht, The Netherlands

    Corné A. M. Roelen & Willem van Rhenen

  2. Division Methodology and Applied Biostatistics, Department of Health Sciences, VU University, Amsterdam, The Netherlands

    Corné A. M. Roelen, Martijn W. Heymans & Jos W. R. Twisk

  3. Division Community and Occupational Medicine, Department of Health Sciences, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands

    Corné A. M. Roelen, Jac J. L. van der Klink & Johan W. Groothoff

  4. EMGO+ Institute for Health and Care Research, VU University Medical Center, Amsterdam, The Netherlands

    Martijn W. Heymans & Jos W. R. Twisk

  5. Center for Leadership and Management Development, Business University Nyenrode, Breukelen, The Netherlands

    Willem van Rhenen

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  1. Corné A. M. Roelen
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Correspondence to Corné A. M. Roelen.

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Roelen, C.A.M., Heymans, M.W., Twisk, J.W.R. et al. Work Ability Index as Tool to Identify Workers at Risk of Premature Work Exit. J Occup Rehabil 24, 747–754 (2014). https://doi.org/10.1007/s10926-014-9505-x

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