A "meta-evaluation" of 56 studies published 1982-2005 found that worksite health promotion produced on average a decrease of 26.8% in sick leave absenteeism, a decrease of 26.1% in health costs, a decrease of 32% in workers' compensation costs and disability management claims costs, and a cost-benefit ratio of 5.81 [REF].
A meta-analysis of 22 studies published 1997-2007 determined that workplace health promotion interventions led to "small" reductions in depression and anxiety [REF].