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dc.contributor.authorStapelfeldt, Christina Malmose
dc.contributor.authorJensen, Chris
dc.contributor.authorAndersen, Niels Trolle
dc.contributor.authorFleten, Nils
dc.contributor.authorNielsen, Claus Vinther
dc.date.accessioned2013-03-13T12:14:16Z
dc.date.available2013-03-13T12:14:16Z
dc.date.issued2012
dc.description.abstractPrevious validation studies of sick leave measures have focused on self-reports. Register-based sick leave data are considered to be valid; however methodological problems may be associated with such data. A Danish national register on sickness benefit (DREAM) has been widely used in sick leave research. On the basis of sick leave records from 3,554 and 2,311 eldercare workers in 14 different workplaces, the aim of this study was to: 1) validate registered sickness benefit data from DREAM against workplace-registered sick leave spells of at least 15 days; 2) validate self-reported sick leave days during one year against workplace-registered sick leave. Agreement between workplace-registered sick leave and DREAM-registered sickness benefit was reported as sensitivities, specificities and positive predictive values. A receiver-operating characteristic curve and a Bland-Altman plot were used to study the concordance with sick leave duration of the first spell. By means of an analysis of agreement between self-reported and workplace-registered sick leave sensitivity and specificity was calculated. Ninety-five percent confidence intervals (95% CI) were used. The probability that registered DREAM data on sickness benefit agrees with workplace-registered sick leave of at least 15 days was 96.7% (95% CI: 95.6-97.6). Specificity was close to 100% (95% CI: 98.3-100). The registered DREAM data on sickness benefit overestimated the duration of sick leave spells by an average of 1.4 (SD: 3.9) weeks. Separate analysis on pregnancy-related sick leave revealed a maximum sensitivity of 20% (95% CI: 4.3-48.1). The sensitivity of self-reporting at least one or at least 56 sick leave day/s was 94.5 (95% CI: 93.4 – 95.5) % and 58.5 (95% CI: 51.1 – 65.6) % respectively. The corresponding specificities were 85.3 (95% CI: 81.4 – 88.6) % and 98.9 (95% CI: 98.3 – 99.3) %. The DREAM register offered valid measures of sick leave spells of at least 15 days among eldercare employees. Pregnancy-related sick leave should be excluded in studies planning to use DREAM data on sickness benefit. Self-reported sick leave became more imprecise when number of absence days increased, but the sensitivity and specificity were acceptable for lengths not exceeding one week.en
dc.identifier.citationBMC Public Health (2012), vol. 12 (661)en
dc.identifier.cristinIDFRIDAID 992711
dc.identifier.doihttp://dx.doi.org/10.1186/1471-2458-12-661
dc.identifier.issn1471-2458
dc.identifier.urihttps://hdl.handle.net/10037/4990
dc.identifier.urnURN:NBN:no-uit_munin_4686
dc.language.isoengen
dc.publisherBioMed Centralen
dc.rights.accessRightsopenAccess
dc.subjectVDP::Medical disciplines: 700::Health sciences: 800::Epidemiology medical and dental statistics: 803en
dc.subjectVDP::Medisinske Fag: 700::Helsefag: 800::Epidemiologi medisinsk og odontologisk statistikk: 803en
dc.titleValidation of sick leave measures: self-reported sick leave and sickness benefit data from a Danish national register compared to multiple workplace-registered sick leave spells in a Danish municipalityen
dc.typeJournal articleen
dc.typeTidsskriftartikkelen
dc.typePeer revieweden


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