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. Author manuscript; available in PMC: 2014 Feb 1.
Published in final edited form as: Med Decis Making. 2012 Oct 5;33(2):154–162. doi: 10.1177/0272989X12461856

Table 2.

Results of 500 Simulations for Each Parameter Combination for the Null Case with OR Y = 1

OR X Naïve cNRI (%) Bias-corrected cNRI (%)
Mean Median p < 0.05
Simple Variance
Mean Median Simple Variance p < 0.05
Bootstrap
Variance 95% CI
4 Categories

4 1.11 0.84 20.1% 0.21 0.12 3.0% 4.8% 7.0%
8 1.47 1.01 21.5% 0.19 0.08 3.2% 4.8% 6.6%
16 1.72 1.23 21.2% 0.21 0.10 3.6% 5.8% 8.4%
3 Categories
4 1.04 0.74 39.2% 0.13 0.08 3.1% 5.4% 8.6%
8 1.36 0.98 35.5% 0.07 0.03 5.9% 4.4% 6.8%
16 1.65 1.30 34.4% 0.14 0.04 4.3% 5.9% 9.0%