Related Experiment Video
Updated: May 7, 2026

Inverse Probability of Treatment Weighting Propensity Score using the Military Health System Data Repository and National Death Index
Published on: January 8, 2020
The relationship between tort reform and medical utilization
Kevin T Kavanagh1, Lindsay E Calderon, Daniel M Saman
1From *Health Watch USA, Somerset, Kentucky; †Eastern Kentucky University, Richmond, Kentucky; and ‡Essentia Institute of Rural Health, Duluth, Minnesota.
Medical tort reform does not significantly reduce Medicare costs, as defensive medicine is not a major driver of healthcare spending. Studies show inconsistent effects on healthcare expenditures after reform, indicating little impact on overall Medicare savings.
Area of Science:
- Health Economics
- Public Policy
- Medical Law
Background:
- Defensive medicine is hypothesized to significantly increase national healthcare costs.
- Policymakers suggest tort reform as a potential solution to mitigate these rising expenditures.
- This study investigates the correlation between medical tort reform and Medicare utilization.
Purpose of the Study:
- To determine if states with higher levels of tort reform exhibit decreased Medicare utilization.
- To assess the impact of medical tort reform on healthcare expenditures by comparing pre- and post-reform data.
- To evaluate the hypothesis that defensive medicine drives healthcare costs.
Main Methods:
- Utilized state-level Medicare reimbursement data from the Dartmouth Atlas of Health Care (1999-2010).
- Correlated medical tort reform rankings from the Pacific Research Institute (PRI) with state medical utilization in 2010.
- Conducted pre- and post-reform expenditure comparisons in Mississippi, Nevada, and Texas.
Main Results:
- No significant correlation was found between total state Medicare reimbursements and PRI tort rankings.
- A negative trend in six Medicare utilization categories was observed with higher tort rankings, not supporting the defensive medicine hypothesis.
- Pre- and post-reform analysis in Mississippi, Nevada, and Texas yielded inconsistent results, with no substantial Medicare cost savings demonstrated.
Conclusions:
- The study did not support the hypothesis that defensive medicine is a primary driver of rising healthcare costs.
- Medical tort reform showed no consistent effect on Medicare reimbursements when comparing pre- and post-reform periods.
- Overall, medical tort reform appears to have minimal to no impact on Medicare cost savings.
Related Concept Videos
Torts II
Torts I
Intentional...
Torts III
Quasi-intentional torts in healthcare involve acts where intent is not directed to harm an individual but results in harm due to careless or reckless speech.
Issues And Trends In Healthcare Delivery System
Cost Containment
Payment for healthcare services has historically promoted adoption of costly and often unnecessary or inefficient...
Health Information Technology and Healthcare Information System
Health Information Technology, commonly called HIT, integrates advanced information systems and technology in healthcare settings. Its primary functions include:
Regression Toward the Mean

