Table 1.
Comparison of IP, ED, and OP Utilization Rates in Adult Medicaid Rosters of Study and Control Practices (2014, 2015)
| GROUP | POPULATION SIZE (2015) | EVENT TYPE | 2014 RATE PER 1,000 | 2015 RATE PER 1,000 | DIFFERENCE IN RATE (2015–2014) | AVOIDED EVENTS |
|---|---|---|---|---|---|---|
| Study PCMH | 419 | IP | 338 | 255 | –83 | –35 |
| ED | 2,038 | 1,327 | –711 | –298 | ||
| OP | 6,996 | 8,907 | 1,911 | 801 | ||
| Control A | 963 | IP | 306 | 282 | –23 | –22 |
| ED | 1,608 | 1,178 | –430 | –414 | ||
| OP | 7,741 | 9,033 | 1,292 | 1,244 | ||
| Control B | 2,085 | IP | 279 | 287 | 9 | 18 |
| ED | 1,711 | 1,551 | –160 | –333 | ||
| OP | 8,328 | 9,285 | 957 | 1,995 | ||
| Regional Medicaid | 38,612 | IP | 358 | 297 | –61 | –2,341 |
| ED | 1,754 | 1,434 | –320 | –12,354 | ||
| OP | 7,925 | 8,253 | –328 | 12,674 | ||
Notes: IP = Inpatient, ED = Emergency Department, OP = Outpatient utilization, PCMH = Patient-Centered Medical Home.