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Table 4. State data: Ordinary least squares (OLS) estimates—Number of physicians per 100,000 residents

Impact of State Laws Limiting Malpractice Awards on Geographic Distribution of Physicians

(1985, 1990, 1995, and 2000 data with dummy time variables; N = 196)

Explanatory variableCoefficientStandard errort statistic
Intercept104.5430.083.47
Percent of population age 65 years or older3.891.782.19
Hospital beds per 1,000 residents-.03.03-1.02
Percent of population unemployed-4.591.92-2.39
Population in thousands of residents per square mile16.672.207.58
Personal income in thousands of dollars 5.00.965.21
Farm income as percent of state domestic product-4.201.09-3.81
State law capping damage awards in malpractice cases (1=yes, 0=no)23.996.213.86
1985 (1=yes, 0=no)24.0810.982.19
1995 (1=yes, 0=no)-16.088.80-1.83
2000 (1=yes, 0=no) 78.9621.503.67

Adjusted R2= .58.

Page last reviewed July 2003
Internet Citation: Table 4. State data: Ordinary least squares (OLS) estimates—Number of physicians per 100,000 residents: Impact of State Laws Limiting Malpractice Awards on Geographic Distribution of Physicians. July 2003. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/tortcaps/torttab4.html