Tyo, Karen R.Gurewich, DeborahShepard, Donald S.2022-08-232022-08-232013-02-012013-02-13Am J Public Health. 2013 Feb;103(2):273-5. doi: 10.2105/AJPH.2012.300884. <a href="http://dx.doi.org/10.2105/AJPH.2012.300884">Link to article on publisher's site</a>0090-0036 (Linking)10.2105/AJPH.2012.300884https://hdl.handle.net/20.500.14038/34591Efforts to measure quality of care have focused on ambulatory care providers. We examined the performance of community health centers serving children on Medicaid in 3 states. Descriptive analysis showed considerable patient population heterogeneity, and regression analysis demonstrated that variation explained by the assigned provider was small (mean R(2) = 4.3%) compared with the variation explained by patient demographic variables (mean R(2) = 29.9%). The results reinforce the need for caution when one is attributing quality differences to provider performance.en-USCommunity Health CentersQuality of Health CareQuality Indicators, Health CareChild Health ServicesMedicaidPrimary Health CareCommunity Health and Preventive MedicineHealth Services ResearchPediatricsPrimary CareJournal Articlehttps://escholarship.umassmed.edu/healthpolicy_pp/1043692852healthpolicy_pp/104