. Author manuscript; available in PMC: 2017 Mar 20.

Published in final edited form as: JACC Cardiovasc Interv. 2014 Dec 10;8(1 Pt A):10–16. doi: 10.1016/j.jcin.2014.07.025

TABLE 5.

Concentrated Risk Year Versus Average Year O/E Ratios by Predicted Mortality Risk Quintile

	Sites, N	O/E Concentrated Risk Year (95% CI)	O/E Overall (95% CI)	O/E:O/E (95% CI)
Overall	1,204	1.02 (1.00–1.03)	1.00 (0.99–1.02)	1.01 (0.99–1.04)
Top 20%	241	0.98 (0.95–1.00)	0.96 (0.94–0.98)	1.01 (0.98–1.05)
Top 20%–40%	241	1.00 (0.97–1.03)	0.99 (0.96–1.02)	1.01 (0.97–1.06)
Middle 20%	241	1.09 (1.05–1.13)	1.08 (1.04–1.12)	1.01 (0.96–1.06)
Bottom 20%–40%	241	1.09 (1.04–1.14)	1.08 (1.02–1.13)	1.01 (0.94–1.09)
Bottom 20%	240	1.16 (1.07–1.26)	1.15 (1.05–1.24)	1.01 (0.90–1.14)

Abbreviations as in Table 4.