Table 3.
Outcomes data comparing the baseline and redesign period.
| Baseline | Study period | BPCI [6] | NMS [11] | |
|---|---|---|---|---|
| Number of patients | 696 | 840 | 721→785 | 601,000 |
| Medicare | 288 (41%) | 348 (41%) | 721→785 | 601,000 |
| Non-Medicare | 408 (59%) | 492 (59%) | – | – |
| Length of stay (d) | 3.58 | 2.11 | – | – |
| Medicare | 3.67 | 2.10 | 3.6→3.0 | – |
| Non-Medicare | 3.54 | 2.13 | – | – |
| Rate of discharge to postacute facility | 38.0% | 13.4% | – | – |
| Medicare | 42.2% | 18.1% | 44%→28% | 39.9% (TKA) 40.1% (THA) |
| Non-Medicare | 23.4% | 9.9% | – | – |
| Readmission rate | 4.9% | 3.9% | – | – |
| Medicare | 4.9% | 5.2% | 13%→8% | 6.3% (TKA) 7% (THA) |
| Non-Medicare | 4.9% | 3.0% | – | – |
| Medicare reconciliationa | – | 6.0% | – | – |
| Cost change from baseline | ||||
| Direct (hospital) | – | −27% | – | – |
| Cost to CMS (vs target) | +4.8% (vs national average price) | −11%b (vs national target price) | −20% (vs institutional baseline) | – |
NMS, national Medicare sample; TKA, total knee arthroplasty; THA, total hip arthroplasty.
In addition, a comparison of findings in the present study with those of a BPCI and a 2013-14 NMS.
a
Includes hip fracture patients (excluded from the remainder of the study).
b
From 2017 CJR reconciliation.