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. Author manuscript; available in PMC: 2021 Sep 2.
Published in final edited form as: J Bone Joint Surg Am. 2020 Sep 2;102(17):1495–1500. doi: 10.2106/JBJS.20.00125

TABLE III.

Adjusted Estimates for Time to Surgery*

Parameter Parameter Estimate P Value Marginal Effect
Insurance type
 Expansion −1.21 (−1.35 to −1.07) <0.001 70% shorter
 TANF −0.27 (−0.38 to −0.17) <0.001 24% shorter
 SSI Reference
State
 Illinois 2.83 (1.43 to 4.23) <0.001
 Louisiana 3.56 (2.12 to 5.01) <0.001
 Mississippi 3.61 (2.15 to 5.08) <0.001
 Ohio 4.26 (2.85 to 5.67) <0.001
 Oregon 4.59 (3.22 to 5.97) <0.001
 Texas 3.63 (2.16 to 5.11) <0.001
 Washington 3.88 (2.57 to 5.19) <0.001
 Wisconsin 3.86 (2.40 to 5.30) <0.001
State enrollment variable 1.80 (1.52 to 2.08) <0.001
Age 0.00 (−0.00 to 0.01) 0.799
Sex
 Female 0.19 (0.11 to 0.27) <0.001
 Male Reference
Normalized Area Deprivation Index −0.11 (−0.40 to 0.17) 0.439
No. of orthopaedic surgeons 0.00 (−0.00 to 0.00) 0.128
MMFI 0.98 (0.56 to 1.41) <0.001
Urban vs. rural region 0.16 (0.06 to 0.27) 0.003
*

The dependent variable is the natural log of time to the surgical procedure in days. Model R2 = 0.12.

The values are given as the parameter estimate, with the 95% CI in parentheses.