Long working hours and cardiovascular mortality: a census-based cohort study

Gianfranco Alicandro (), Paola Bertuccio, Gabriella Sebastiani, Carlo La Vecchia and Luisa Frova
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Gianfranco Alicandro: Directorate for Social Statistics and Population Census, National Institute of Statistics (ISTAT)
Paola Bertuccio: Università degli Studi di Milano
Gabriella Sebastiani: Directorate for Social Statistics and Population Census, National Institute of Statistics (ISTAT)
Carlo La Vecchia: Università degli Studi di Milano
Luisa Frova: Directorate for Social Statistics and Population Census, National Institute of Statistics (ISTAT)

International Journal of Public Health, No 0, 10 pages

Abstract: Abstract Objectives Long working hours have been associated with cardiovascular disease (CVD) mortality. However, results are inconsistent and large cohort studies are needed to confirm these findings. Methods We conducted a census-based cohort study including 11,903,540 Italian workers aged 20–64 years, registered in the 2011 census, with a 5-year follow-up (2012–2016). We estimated cause-specific hazard ratios (cHRs) through Cox regression models to quantify the association between long working hours and CVD mortality. Results Over 5 years of follow-up, 17,206 individuals died from CVD (15,262 men and 1944 women). Men working 55 or more hours per week had a cHR of 0.95 (95% confidence interval, CI 0.89–1.02) for all CVDs, while women showed a cHR of 1.19 (95% CI 0.95–1.49). Professional women working more than 55 h per week had a cHR of 1.98 (95% CI 0.87–4.52). Conclusions This study does not support an association between long working hours and CVD mortality among active Italian men, while it suggests a possible excess risk among women, although based on limited number of events.

Keywords: Cardiovascular diseases; Mortality; Long working hours; Overtime work; Workers; Occupation (search for similar items in EconPapers)
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DOI: 10.1007/s00038-020-01361-y

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