Table 1.
Covariate Balance between Treatment and Control Groups
| (1) | (2) | (3) | (4) | (5) | (6) | |
|---|---|---|---|---|---|---|
| Physicians (as patients) | Officers | Difference | Dependents of Physicians | Dependents of officers | Difference | |
| Predicted Incidence of Cesarean Delivery | 0.300 (0.148) | 0.312 (0.165) | −0.015*** (0.003) | 0.266 (0.093) | 0.272 (0.099) | −0.006*** (0.001) |
| Predicted Incidence of Preoperative Testing | 0.184 (0.105) | 0.176 (0.111) | 0.005*** (0.001) | 0.221 (0.131) | 0.219 (0.129) | 0.003 (0.002) |
| Predicted Incidence of Comprehensive Diabetes Care | 0.616 (0.214) | 0.577 (0.190) | 0.039*** (0.010) | 0.517 (0.204) | 0.538 (0.189) | −0.020*** (0.008) |
| Predicted Incidence of Statin Use | 0.758 (0.142) | 0.757 (0.126) | 0.002 (0.008) | 0.608 (0.214) | 0.581 (0.194) | 0.028 (0.018) |
| Predicted Medication Possession Ratio for Hypertension | 0.713 (0.091) | 0.723 (0.095) | −0.011*** (0.003) | 0.685 (0.120) | 0.687 (0.129) | −0.002 (0.0050) |
| Predicted Medication Possession Ratio for hypercholesterolemia, | 0.621 (0.089) | 0.642 (0.104) | −0.022*** (0.003) | 0.632 (0.112) | 0.638 (0.115) | −0.006 (0.004) |
| Predicted Incidence of DTaP Immunization Compliance | - | - | - | 0.658 (0.119) | 0.648 (0.126) | 0.011*** (0.003) |
| Predicted Incidence of IPV Immunization Compliance | - | - | - | 0.627 (0.113) | 0.631 (0.121) | −0.004 (0.003) |
| Predicted Incidence of HiB Immunization Compliance | - | - | - | 0.687 (0.153) | 0.695 (0.156) | −0.008** (0.004) |
| Predicted Incidence of Hepatitis A Immunization Compliance | - | - | - | 0.862 (0.100) | 0.865 (0.103) | −0.003 (0.002) |
| Predicted Incidence of Hepatitis B Immunization Compliance | - | - | - | 0.739 (0.112) | 0.740 (0.122) | 0.001 (0.003) |
| Predicted Incidence of Chicken Pox Immunization Compliance | - | - | - | 0.783 (0.096) | 0.795 (0.100) | −0.012*** (0.002) |
| Predicted Incidence of PCV Immunization Compliance | - | - | - | 0.787 (0.112) | 0.801 (0.115) | −0.014*** (0.003) |
| Predicted Incidence of Rotavirus Immunization Compliance | - | - | - | 0.317 (0.209) | 0.317 (0.209) | 0.000 (0.004) |
Notes: standard deviations are reported in Columns 1, 2, 4 and 5. Standard errors are reported in the differencing columns (Columns 3 and 6) and are clustered at the individual beneficiary level. Predicted values of the indicated outcome variables are from regressions of the indicated measure (within the relevant sample) on the key covariates employed in the analysis: patient age-by-sex dummies, patient race dummies, patient pay-grade dummies, previous year RVU, previous year RWP, previous year inpatient days, Charlson combordity index, and base-by-year-by-care-location fixed effects. Data are from the Military Health System Data Repository, 2003–2013.
Significant at the 1 percent level
Significant at the 5 percent level
Significant at the 10 percent level.