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The Impact of Adherence to Clinical Practice Guidelines on Medical Costs
Renan C Castillo1, Sara Heins, Dorianne Feldman
1Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health (Dr Castillo, Dr Heins, Dr DuGoff, Dr Roberts, Ms Staguhn, Dr Anderson);Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine (Dr Feldman, Dr Wegener); and Department of International Health (Dr Trujillo), Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland.
Objective:
To examine the association between non-adherence to clinical practice guidelines (CPGs) and medical and indemnity spending among back and shoulder injury patients.
Methods:
Workers compensation claims data was used from a large, US insurer (1999 to 2010). Least square regression models were created to examine the association between spending and guideline-discordant care.
Results:
Non-adherence to CPGs was associated with higher medical and indemnity spending for 11 of the 28 CPG indicators. Failure to adhere to the other CPGs did not increase medical or total spending. After covariate adjustment, non-adherence to these 11 CPGs was associated with spending increases that ranged from $16,000 for physical therapy (PT) to $114,000 for surgery.
Conclusions:
Our results demonstrate that failure to adhere to a subset of CPG indicators significantly predicts increased medical and indemnity spending for two important occupational injuries.
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