Quantifying the defensive medicine contribution to primary care costs

Area of Science:

• Health Economics
• Medical Practice Management
• Clinical Decision Making

Background:

• Defensive medicine contributes to healthcare economic losses, but previous cost estimations vary.
• Accurate measurement of defensive medicine's financial impact is needed.

Purpose of the Study:

• To directly quantify the proportion of primary care costs attributed to defensive medicine.
• To establish a novel methodology for assessing the economic burden of defensive medical practices.

Main Methods:

• A six-week prospective study involving primary care physicians across four practices.
• Physicians rated the defensiveness of medical orders on a 5-point scale over three distinct days.
• Costs were weighted by defensiveness scores, calculated using Medicare reimbursement rates.

Main Results:

• 21 physicians rated 1234 orders for 347 patients.
• The median proportion of costs attributable to defensive medicine was 3.1% (IQR [0.5%, 7.2%]).
• Physicians trained in community hospitals were more likely to issue defensive orders (OR=4.29).

Conclusions:

• A new, direct method for quantifying defensive medicine costs has been developed.
• Defensive medicine appears to have a minimal impact on overall primary care expenditures.