Figure 2. Time-trend data for nursing home facilities: chronic care pain (top) and post–acute care pain (bottom).

Quarterly means were calculated from facilities with a reportable score in that quarter. Lower scores indicate better performance. Numbers in parentheses are the average numbers of facilities across quarters. IPG = identified participant group. For a given measure, the IPG-select subgroup consists of IPG providers that elected to focus on that measure, and the IPG-other subgroup consists of IPG providers that selected other measures.