Zaballa, ElenaMartínez Martínez, José Miguel, 1974-Duran Jordà, Xavier, 1974-Alberti, ConstançaGimeno Ruiz de Porras, DavidBenavides, Fernando G. (Fernando García)2016-11-112016-11-112016Zaballa E, Martínez J, Duran X, Albertí C, Gimeno Ruiz de Porras D, Benavides F. Incidence of sickness absence by type of employment contract: one year follow-up study in Spanish salaried workers. Archives of Public Health. 2016;74:40. DOI: 10.1186/s13690-016-0152-x2049-3258http://hdl.handle.net/10230/27493Background: To examine the differences in the incidence of registered sickness absence by type of employment contract in a large representative sample of salaried workers in Spain in 2009. Method: A study of 653,264 salaried workers covered by the Social Security system who had 133,724 sickness absence episodes in 2009. Crude and adjusted rate ratios and their corresponding 95 % confidence intervals (CIs) were calculated with Poisson regression models. Results: The incidence rate per 100 workers-year of sickness absence for temporary workers (IR = 32.2) was slightly higher than that of permanent workers (IR = 28.9). This pattern was observed in both men (RR = 1.12; 95 % CI 1.10–1.14) and women (RR 1.11; 95 % CI 1.09–1.12). However, after adjusting for age, company size, and occupational category, the differences disappeared in men (aRR = 1.01; 95 % CI 0.99–1.02) and decreased in women (aRR = 1.06; 95 % CI 1.04–1.07). Conclusion: Our findings provide evidence on the independence of sickness absence benefits from the type of employment contract as well as on the nonexistence of incentives for taking sickness absence in workers with a permanent employment contract. In the context of increasing market flexibility, these results show a positive functioning of the Social Security system.application/pdfeng© 2016 The Author(s). Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.info:eu-repo/semantics/articlehttp://dx.doi.org/10.1186/s13690-016-0152-xEmployment conditionsOccupational healthSick leaveSocial Security systeminfo:eu-repo/semantics/openAccess