https://www.selleckchem.com/products/pds-0330.html 12 weeks, 95% CI - 1.20 to - 1.05) than claims for LF, but significantly less likely to be resolved in the later phase (75th and 90th quantiles; 75th quantile 7.02 weeks, 95% CI 6.42-7.61). Claims for NSLC had generally greater time loss than claims for LF, but less time loss than LBP above the 90th quantile. Conclusions The risk of a claim for LBP is higher than LF and NSLC. Although LBP claims are more likely to resolve in the early phase than limb fracture and NSLC claims, LBP claims have longer durations when workers are away from work more than seven weeks.Purpose The purpose of this systematic literature review (SLR) is to examine the state of knowledge about the cost-effectiveness of return-to-work (RTW) interventions targeted at workers with medically certified sickness absences related to mental disorders. Our SLR addresses the question, "What is the evidence for the cost-effectiveness of RTW interventions for mental illness related sickness absences?" Methods This SLR used a reviewer pair multi-phase screening of publically available peer-reviewed studies published between 2002 and 2019. Five electronic databases were searched (1) MEDLINE 1946-Present, (2) MEDLINE Epub-Ahead of Print and In-Process, (3) PsycINFO, (4) Econlit, and (5) Web of Science. Results 6138 unique citations were identified. Ten articles were included in the review. Eight of the ten studies were conducted in the Netherlands, one in Sweden, and one in Canada. Results of this SLR suggest there is evidence that RTW interventions for workers with medically certified sickness absences can be cost-effective. Conclusions Although this SLR's results suggest that economic evaluations of RTW interventions can be cost-effective, the use of economic evaluations for studies of these program types is in its infancy. Some jurisdictions (e.g., the Netherlands) seem to have recognized the need for economic evaluations. However, more research is needed