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Table 4 Groupings used for determining correlations between the model predictions and actual mortality rates in the Whickham study.

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

Ranking factor Grouping
Model estimates of 20-year survival 39 groups of 35 subjects and 1 of 29
Age (1) One year age bands
Age (2) Five year age bands
Systolic BP 10 mm Hg bands from 100 to 200 mm Hg
TC 0.5 mmol/l bands from 3.0 to 9.99 mmol/l.