From: An oral health intervention for people with serious mental illness (Three Shires Early Intervention Dental Trial): study protocol for a randomised controlled trial
Standard care, %
Dental intervention, %
Non-cluster N (total)
Multiplied by design effect
Adjusted for 20% dropout
5
20
176
334
418
10
25
226
430
538
15
30
268
510
638
35
302
574
718
40
330
628
785
45
352
670
837
50
366
696
870