Table 3: Characteristics of relevant studies included in the synthesis
Citation	Quality Score	Number of Studies Included	Number of Relevant Studies	Occupation/Industry
Aas, 2011	92% (High)	10	1	Kitchen workers, service managers, chefs, cooks, and kitchen aids working at least 6 hours per day; food services in schools, nurseries and nursing homes
Carroll, 2010	92% (High)	13 (12 articles)	13	Not reported
Corbière, 2006	100% (High)	14	14	Not reported
Corbière, 2009	92% (High)	24	11	Staff working with developmental disabilities, customer service representatives, industrial employees, caregivers, nurses, post office employees, dentists, orderlies, health care workers, pharmaceutical company employees; health care, customer services, municipal employees, industrial
Czabala, 2011	100% (High)	79 controlled studies	23	Mental health professionals, healthcare professionals, teachers, other white-collar workers, blue-collar workers, armed forces, various, n/r; health care, military, education, white-collar, blue-collar, other
Dick, 2011	92% (High)	28	7	Not reported
Furlan, 2012	92% (High)	12 (14 articles)	12 studies (14 articles)	Workplaces, primary care practices, occupational health services, specialty medical clinics
Noordik, 2010	92% (High)	7 articles	7 articles	Not reported
Palmer, 2012	92% (High)	42 studies	42	Not reported
Pomaki, 2012	92% (High)	7 studies (8 articles)	7 studies (8 articles)	Most mixed occupational sectors or n/r, one financial and insurance sector, one municipal police
Richardson, 2008	92% (High)	36 studies (38 articles)	11 articles	Office workers, teachers, nurses, hospital staff, factory workers, maintenance personnel, social services staff
Tompa, 2008	85% (High)	8	8	Multi-sector (system-level interventions) (4), health care (1), manufacturing and warehousing (1), mining and oil and gas extraction (1), utilities (1)
Tveito, 2004	92% (High)	28	28	Municipality, postal service, hospital, medical centres, nursing school, Finnish cooperative, mailing company, bus company, geriatric hospitals, municipal fire fighters, home care personnel, industry, nursing and environmental services, airport baggage handlers, cargo department of airline, warehouse, county, light industry, mine, workplaces
van der Klink, 2001	85% (High)	48 studies (in 45 articles)	3	Not reported