• Jenni Ervasti, Marianna Virtanen, Tea Lallukka, Emilie Friberg, Ellenor Mittendorfer-Rutz, Erik Lundström, and Kristina Alexanderson.
• Finnish Institute of Occupational Health, Helsinki, Finland.
• BMJ Open. 2018 Apr 19; 8 (4): e019749.

ObjectivesWe examined trends of diagnosis-specific work disability before and after ischaemic heart disease (IHD).DesignParticipants were followed 4 years before and 4 years after an IHD event for diagnosis-specific work disability (sickness absence and disability pension).Setting And ParticipantsA Swedish population-based cohort study using register data on all individuals aged 25-60 years, living in Sweden, and who suffered their first IHD event in 2006-2008 (n=23 971) was conducted.ResultsBefore the event, the most common diagnoses of work disability were musculoskeletal disorders (21 annual days for men and 44 for women) and mental disorders (19 men and 31 for women). After multivariable adjustments, we observed a fivefold increase (from 12 to 60 days) in work disability due to diseases of the circulatory system in the first postevent year compared with the last pre-event year among men. Among women, the corresponding increase was fourfold (from 14 to 62 days). By the second postevent year, the number of work disability days decreased significantly compared with the first postevent year among both sexes (to 19 days among men and 23 days among women). Among women, mean days of work disability due to diseases of the circulatory system remained at a higher level than among men during the postevent years. Work disability risk after versus before an IHD event was slightly higher among men (rate ratio (RR) 2.49; 95% CI 2.36 to 2.62) than among women (RR 2.29, 95% CI 2.12 to 2.49). When pre-event long-term work disability was excluded, diseases of the circulatory system were the most prevalent diagnosis for work disability after an IHD event among both men and women.ConclusionsAn IHD event was strongly associated with an increase in work disability due to diseases of the circulatory system, especially among men and particularly in the first postevent year.© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

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