Table 2.

Clinic Characteristics by Survey Participation Years (2017, 2019, 2021)

Characteristic1-2 Surveys, Any Years2 Surveys, 2017 and 2019All 3 Surveys
Clinics, No.28759269
Current System Size, No. (%)a
    1-1172 (25.1)16 (27.1)59 (21.9)
    >12215 (74.9)43 (72.9)210 (78.1)
Clinic Size, No. (%)b
    1-9139 (51.7)
    >10118 (43.9)
Unknown12 (4.5)
Clinic Location, No. (%)
    Rural130 (45.3)21 (35.6)100 (37.2)
    Urban157 (54.7)38 (64.4)169 (62.8)
  • a System size (number of primary care clinic locations) changed over time due to acquisition of small health care systems by larger systems.

  • b Clinic size (number of clinicians) was captured only in 2021. On average, in small clinics 42% of clinicians were advance practice providers (nurse practitioners, physicians assistants), and in large clinics 30% of clinicians are advance practice providers.