Table 5 Addressing Endogeneity and Omitted Variables Bias, Multinomial Logistic Regression Analysis
From: Effects of health insurance on patient demand for physician services
Routine Visits Only a | Emergency Visits Only b | Mixture of Visits c | Routine Visits Only a | Emergency Visits Only b | Mixture of Visits c | |
|---|---|---|---|---|---|---|
Coefficient | (1) | (2) | (3) | (4) | (5) | (6) |
A. Acute Event Occurred Within One Year of the Survey (N = 1274) | B. Regression Discontinuity at Medicare Eligibility Threshold (N = 2203) | |||||
Private insurance | 12.41** (6.03) | −3.98*** (1.45) | −1.00 (5.63) | |||
Public insurance | 2.66 (6.31) | −2.85** (1.46) | 13.76*** (5.51) | |||
RD Term (≥ 65) | 37.96* (20.73) | −61.43** (27.61) | 6.44 (7.52) | |||
C. Managed Care Effects (N = 36,424) | D. Detailed Coverage Type (N = 36,424) | |||||
Private insurance | 24.24*** (1.13) | −2.16*** (0.29) | 1.33* (0.75) | |||
Public insurance | 17.03*** (1.50) | 0.20 (0.30) | 8.17*** (0.81) | |||
Private insurance × managed care | 0.28 (0.80) | 0.11 (0.29) | −0.20 (0.48) | |||
Public insurance × managed care | 2.20 (1.64) | 0.12 (0.35) | 0.96 (0.69) | |||
Job-Based Group Insurance | 22.22*** (0.94) | −2.16*** (0.26) | −0.24 (0.55) | |||
Other Group Insurance | 17.24*** (4.55) | −1.97 (2.38) | −1.76 (2.55) | |||
Individual (Non-Group) | 14.17*** (1.21) | −1.48 (0.33) | 0.91 (0.67) | |||
Medicaid | 12.56*** (1.08) | 0.48** (0.24) | 7.89*** (0.54) | |||
Tricare/CHAMPVA | 1.01 (2.22) | 1.05* (0.60) | 2.58** (1.22) | |||
Other Public | 14.49*** (5.21) | −5.26** (2.39) | −0.30 (2.49) | |||
Uninsured | 1 | 1 | 1 | 1 | 1 | 1 |