@article{ref1,
title="Safety incidents associated with extended working hours. a systematic review and meta-analysis",
journal="Scandinavian journal of work, environment and health",
year="2021",
author="Matre, Dagfinn and Skogstad, Marit and Sterud, Tom and Nordy, Karl-Christian and Knardahl, Stein and Christensen, Jan Olav and Lie, Jenny-Anne S.",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="OBJECTIVE: We performed a systematic review to assess potential consequences of extended working hours on accidents, near-accidents, safety incidents and injuries (incidents) by considering the overall certainty of evidence. <br><br>METHODS: We searched five databases systematically (Medline, Embase, PsycINFO, Web of Science, and Proquest Health and safety Science Abstract) and identified 10072 studies published until December 2020. Twenty-two studies met the inclusion criteria. We followed a systematic approach to evaluate risk of bias and synthesize results in a meta-analysis. The certainty of evidence was determined by a modified version of The Grading of Recommendations Assessment, Development and Evaluation (GRADE). <br><br>RESULTS: Our analyses indicated an association between working >12 hours/day (RR: 1.24, 95%CI: 1.11, 1.40), or working >55 hours/week (RR: 1.24, 95%CI: 0.98, 1.57), and elevated risk of incidents. The certainty of evidence evaluated as low. Weak or no associations were observed for other exposure contrasts: working >8 hours/day (RR: 0.93, 95%CI: 0.72, 1.19), or working overtime (RR: 1.08, 95%CI: 0.75, 1.55), working 41-48 hours/week (RR: 1.02, 95%CI: 0.92, 1.13) or 49-54 hours/week (RR: 1.02, 95%CI: 0.97, 1.07). The certainty of evidence was evaluated as low (very low for 41-48 hours/week). <br><br>CONCLUSIONS: Daily working hours >12 hours and weekly working hours exceeding 55 hours was associated and increased risk of incidents. The level of evidence was low. Hence, further high-quality research is warranted to elucidate these associations.<p /> <p>Language: en</p>",
language="en",
issn="0355-3140",
doi="10.5271/sjweh.3958",
url="http://dx.doi.org/10.5271/sjweh.3958"
}