From: Predictive risk stratification model: a progressive cluster-randomised trial in chronic conditions management (PRISMATIC) research protocol
Prism risk level (default score range)
Proportion of sample %
Sample (number of patients) for screening in each practice
Level 4 (50 to 100)
20
15
Level 3 (20 to 50)
50
35
Level 2 (10 to 20)
10
Level 1 (0 to 10)
Total sample
100
70