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. Author manuscript; available in PMC: 2014 Jan 7.
Published in final edited form as: Health Serv Res. 2011 Oct 18;47(1 0 2):10.1111/j.1475-6773.2011.01332.x. doi: 10.1111/j.1475-6773.2011.01332.x

Table 4.

Mean Infrastructure Score, Percent of “Must Pass” Elements Achieved, and the Proportion of Primary Care Practices Qualifying for Medical Home Recognition, Stratified by Organizational Structure.

Estimate (95 Percent Confidence Interval)

Measure of Practices’ Achievement All Primary Care
n = 60,859
Solo/Partner
n = 46,829
Single-Specialty
n = 9,014
Multi-Specialty
n = 5,016
p-Value
Mean infrastructure score* 37.6 (34.9–40.3) 35.4 (32.2–38.7) 44.3 (39.9–48.8) 46.4 (39.5–53.2) <.001
Percent of “must pass” elements achieved 37.9 (35.2–40.6) 35.6 (32.3–38.8) 45.5 (41.0–50.0) 45.8 (40.0–51.9) <.001
Percent of practices with a given level of recognition
  Not recognized 39.5 (33.6–45.5) 43.1 (35.9–50.6) 29.7 (22.8–37.6) 24.0 (15.1–36.1) .011
  Level 1 30.9 (26.0–35.7) 31.1 (25.1–37.7) 29.0 (22.6–36.5) 32.6 (21.4–46.2)
  Level 2 18.3 (14.5–22.0) 16.6 (12.6–21.7) 23.6 (17.7–30.8) 23.6 (16.0–33.2)
  Level 3 11.8 (8.4–14.3) 9.2 (6.2–13.5) 17.7 (12.5–24.4) 19.8 (12.6–29.7)
*

The denominator for a practice’s infrastructure score was based on the NAMCS items (that mapped to specific NCQA elements) for which it reported data. The maximum denominator for the score was 59 points; however, the denominator value changed in the setting of missing data.

NCQA, National Committee on Quality Assurance.