The development and validation of two prediction models to identify employees at risk of high sickness absence
Open Access
- 25 April 2012
- journal article
- research article
- Published by Oxford University Press (OUP) in European Journal of Public Health
- Vol. 23 (1), 128-133
- https://doi.org/10.1093/eurpub/cks036
Abstract
Background: Sickness absence (SA) is a public health risk marker for morbidity and mortality. The aim of this study was to develop and validate prediction models to identify employees at risk of high SA. Methods: Two prediction models were developed using self-rated health (SRH) and prior SA as predictors. SRH was measured by the categories excellent, good, fair and poor in a convenience sample of 535 hospital employees. Prior SA was retrieved from the employer's register. The predictive performance of the models was assessed by logistic regression analysis with high (≥90th percentile) vs. non-high (Results: The overall performance as reflected in the Nagelkerke's pseudo R2 was 11.7% for the model identifying employees with high SA days and 31.8% for the model identifying employees with high SA episodes. The discriminative ability, represented by the area (AUC) under the receiver operating characteristic (ROC), was 0.729 (95% CI 0.667–0.809) for the model identifying employees with high SA days and 0.831 (95% CI 0.784–0.877) for the model identifying employees with high SA episodes. The Hosmer–Lemeshow test showed acceptable calibration for both models. Conclusions: The prediction models identified employees at risk of high SA, but need further external validation in other settings and working populations before applying them in public and occupational health research and care.This publication has 34 references indexed in Scilit:
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