From: Statistical design of personalized medicine interventions: The Clarification of Optimal Anticoagulation through Genetics (COAG) trial
Standard Deviation of PTTR
20%
25%
30%
Power
p
Δ
80%
90%
0.4
5.49%
550
730
860
1140
1238
1642
0.5
4.58%
792
1050
1782
2364
0.6
3.67%
1932
2564
2782
3692