Between 2002 and 2009, eight states adopted Medicaid-sponsored P4P programs in nursing homes all of which primarily targeted quality of care for long-stay (or chronic care) residents…programs have been previously described (Werner et al. 2010). Brieﬂy, most states use a payment model based on a point system that is translated into per diem add-ons. For each measure included in the payment model, each nursing home is evaluated and earns points based on either its ranking compared with other nursing homes in the state or, in one state, whether it has achieved a target level of performance. The earned points are summed across all measures and translated into a per diem add-on for all Medicaid resident days, where nursing homes with more points receive higher add-ons. The total possible bonus amount varied across states from an add-on valued at about half a percent of the per diem rate to over 5 percent with bonuses in most states ranging
between 3 and 4 percent of the per diem rates.
Are nursing homes themselves responding to the state P4P initiatives? A paper by Werner, Konetzka, and Polsy examines this question. Because the different states implemented the P4P programs at different times, the authors are able to use a difference-in-differences approach to examine how the P4P programs affected quality.
The authors find the following:
Quality improvement under P4P was inconsistent. While three clinical quality measures (the percent of residents being physically restrained, in moderate to severe pain, and developed pressure sores) improved with the implementation of P4P in states with P4P compared with states without P4P, other targeted quality measures either did not change or worsened. Of the two structural measures of quality that were tied to payment (total number of deﬁciencies and nurse stafﬁng) deﬁciency rates worsened slightly under P4P while stafﬁng levels did not change.
The authors caution that hopes for P4P to produce dramatic improvement in nursing home quality should be tempered.