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. Author manuscript; available in PMC: 2010 May 1.
Published in final edited form as: Am J Med. 2009 May;122(5):464–471. doi: 10.1016/j.amjmed.2008.10.034

Table 3.

Discrimination and Calibration for Hypertension Risk Prediction Models in Validation Cohort (N = 5,395)

Inclusive Model Simplified Model With Lipids Simplified Model Without Lipids Blood Pressure Only Model
Harrell’s C-Index* (SE) 0.705 (0.017) 0.705 (0.017) 0.703 (0.017) 0.676 (0.017)
Hosmer-Lemeshow χ2† (p-value) 24.6 (0.002) 20.7 (0.008) 12.3 (0.140) 8.8 (0.356)
*

Harrell’s C-Index is analogous to the area under the ROC curve or AUC

†

Hosmer-Lemeshow χ2 measures the calibration of the model; significant p-values suggest lack of calibration.