Table 5 Use of Hospital Care in Intervention Plans that Replaced a Hospital Deductible with a Per-diem Copayment Compared to Concurrent Trends in Matched Control Plans that Maintained a Hospital Deductible, Dual Eligible Enrollees Only
From: Association of daily copayments with use of hospital care among medicare advantage enrollees
Intervention Plans | Control Plans | Difference- in-Difference Estimates | ||||
|---|---|---|---|---|---|---|
Year Before Benefit Change | Year After Benefit Change | Year Before Intervention Plan Changes | Year After Intervention Plan Changes | Unadjusted | Adjusted | |
Inpatient admissions per 100 enrollees | 38.9 | 41.0 | 35.6 | 38.2 | −0.5 (−2.9 to 2.0) | 1.2 (−1.4 to 3.8) |
Inpatient days per 100 enrollees | 197.7 | 224.0 | 181.4 | 197.9 | 9.8 (−7.4 to 27.0) | 19.4 (−0.7 to 39.6) |
Proportion hospitalized (%) | 22.8 | 22.6 | 22.0 | 22.8 | −1.1 (−2.2 to 0.1) | −0.3 (− 1.5 to 1.0) |
Average inpatient length of stay | 4.6 | 4.8 | 4.8 | 4.9 | 0.2 (−0.1 to 0.5) | 0.2 (−0.1 to 0.7) |