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. Author manuscript; available in PMC: 2012 May 10.
Published in final edited form as: Stat Med. 2011 Jan 13;30(10):1105–1117. doi: 10.1002/sim.4154

Table 1.

Point estimates (Est), standard error estimates (SE) and 0.95 confidence intervals (CI) for Cτ with Framingham study data

C-index New Method Conventional
τ Est SE CI Est SE CI
8 0.76 0.02 (0.73, 0.79) 0.76 0.01 (0.73, 0.79)
10 0.75 0.01 (0.72, 0.78) 0.75 0.01 (0.73, 0.78)
12 0.75 0.01 (0.72, 0.77) 0.75 0.01 (0.73, 0.78)
14 0.75 0.02 (0.70, 0.80) 0.75 0.01 (0.73, 0.78)
∞ NA NA NA 0.75 0.01 (0.73, 0.77)