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Table 2 Details of questionnaire sampling by risk level

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)

15

10

Level 1 (0 to 10)

15

10

Total sample

100

70