Bias	Authors' judgment	Description
Selection bias	Unlikely	Random assignment conducted by numbering participant applications and using a random number generator to assign to treatment or control. A researcher without connection to the study conducted the randomization
Performance bias	Very likely	No discussion of researcher blinding in report
Detection bias	Very likely	No discussion of assessor blinding in report
Attrition bias	Uncertain	Attrition occurred following randomization with four participants exiting the control group before data collection. No attrition reported from the treatment group. Since control group participants exited before data collection, it is unclear whether there was attrition
Reporting bias	Unlikely	Reporting complete for work status, supports intensity scale for behavioral and medical supports, and reported use of psychotropic medication
Other bias	Likely	Treatment group participants were located at two hospitals in the same region with largely the same staff at each site. Authors noted possible bias as a result of geographic location and staff skill and training