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Table 5 Summarising the comparison of the model survival estimates with actual survival in the Whickham cohort.

From: Description and validation of a Markov model of survival for individuals free of cardiovascular disease that uses Framingham risk factors

   n Model Whickham Difference Diff 95%CI Significant difference? P =
  Total 1391 75.0% 75.4% 0.4% -1.6%, 2.4% 0.764
Sex Men 676 70.0% 71.3% 1.3% -1.7%, 4.2% 0.402
  Women 715 79.8% 79.3% -0.5% -3.2%, 2.3% 0.747
Age 35–50 783 63.1% 63.1% 0.0% -3.2%, 3.1% 0.976
  >50 608 58.4% 58.2% -0.2% -3.9%, 3.5% 0.914
Smoking status Smokers 709 68.4% 69.4% 1.0% -2.0%, 4.1% 0.525
  Non-smokers 683 81.9% 81.7% -0.3% -2.9%, 2.3% 0.849
Total cholesterol TC >= 7.5 170 68.3% 65.3% -3.0% -9.6%, 3.6% 0.447
  TC 5.5–7.4 827 75.2% 76.4% 1.2% -1.4%, 3.7% 0.447
  TC < 5.5 284 77.6% 75.1% -2.5% -9.0%, 4.0% 0.338
Systolic BP BP >= 180 95 55.6% 40.4% -15.2% -24.4%, -5.9% 0.006
  BP 160–179 180 63.3% 66.1% 2.8% -3.3%, 9.0% 0.458
  BP 115–159 1000 77.7% 78.7% 1.0% -1.3%, 3.3% 0.467
  BP < 115 115 86.1% 89.7% 3.5% -1.9%, 9.0% 0.259
Diabetes Diabetic 9 71.4% 55.6% -15.8% -43.6%, 12.0% 0.413
  Non-diabetic 1382 75.0% 75.5% 0.4% -1.6%, 2.5% 0.729