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