Table. Absolute Differences in HCV Prescription Fills Between Treated States and Synthetic Control States in the Period After Adoption of Carve-Out Policies.
State | Policy changea | Treatedb | Synthetic controlb | Difference (95% CI)c | |
---|---|---|---|---|---|
Year | Quarter | ||||
Overall | NA | NA | 47.7 | 25.6 | 22.1 (12.7-34.1) |
Indiana | 2016 | Q4 | 43.6 | 32.1 | 11.5 (5.1-19.0) |
Michigan | 2016 | Q2 | 53.0 | 16.5 | 36.6 (23.5-53.9) |
New Hampshire | 2016 | Q3 | 60.6 | 17.0 | 43.6 (25.9-68.4) |
West Virginia | 2017 | Q3 | 45.7 | 25.0 | 20.7 (11.1-32.8) |
Abbreviations: HCV, hepatitis C virus; NA, not applicable.
Year and quarter of carve out implementation.
Quarterly rates of HCV prescriptions per 100 000 Medicaid enrollees during the postperiod. Synthetic control states were also matched based on liver and sobriety restrictions. Estimates are for 2 years after the policy change.
Upper and lower bounds of confidence intervals were found using Taylor series linearization.