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. Author manuscript; available in PMC: 2015 Mar 15.
Published in final edited form as: Med Care. 2014 Mar;52(3):185–193. doi: 10.1097/MLR.0000000000000050

Table 2.

The intracluster (intraclass) correlation coefficients (ICC) for measuring the extent of variation in patient adherence to post AMI therapies across hospital referral regions

Therapy mean 95% Confidence Intervals (CI)†
β-blockers 0.053 (0.043, 0.064)
ACEIs/ARBs 0.050 (0.039, 0.061)
Statins 0.041 (0.031, 0.052)

Abbreviation: ACEIs, angiotensin converting enzyme inhibitors; ARBs, angiotension receptor blockers.

†

The 95% CI was generated by a bootstrap of 1000 iterations with replacement from all patients with respective preventive therapy in the study cohort.