• F G Benavides, C Serra, R Domínguez, J M Martínez, M Plana, M Despuig, M Sampere, and D Gimeno.
• Occupational Health Research Unit, Universitat Pompeu Fabra, Doctor Aiguader, 88, 08003 Barcelona, Spain. fernando.benavides@upf.edu
• Occup Environ Med. 2009 Jan 1; 66 (1): 63-7.

ObjectiveIn Spain, sick pay benefits for work-related sick leave episodes are higher than for non-work-related episodes. Our aim is to assess whether time to return to work is longer for higher paid sick leave episodes than for lower paid episodes.MethodsWe used data from 62,376 work-related and 76,932 non-work-related sick leave episodes occurring among 338,226 workers from 56,099 companies in Spain in 2002. All episodes were followed for up to 18 months. Episodes were classified by a physician as being work- or non-work-related according to medico-legal judgments. The median episode duration and the 25th and 75th percentiles were calculated. The probability of remaining absent from work was estimated by a non-parametric estimator of the marginal survival function. The time ratio between both types of sick leave was estimated by a log-logistic regression model, using non-work-related episodes as the reference.ResultsMedian episode duration (25th-75th percentiles) was 11 (6-21) days for work-related episodes and 9 (4-29) days for non-work-related episodes. Time to return to work was longer for work-related episodes than for non-work-related episodes of less than 16 days (time ratio: 1.19 in men and 1.08 in women), while the opposite was observed for episodes of more than 15 days (0.58 in men and 0.40 in women).ConclusionsSick pay benefits have a limited effect on time to return to work after a sick leave episode.

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