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. Author manuscript; available in PMC: 2016 Sep 7.
Published in final edited form as: Biometrics. 2016 Jan 26;72(3):926–935. doi: 10.1111/biom.12475

Table 4.

Power(%), Scenario 2: Survival and ALSFRS; TOU=Proposed O'Brien test, TOU,Ad=Proposed Adaptive O'Brien test, TOU,Opt=Optimally Weighted O'Brien Test, TFSU=Proposed Finkelstein-Schoenfeld(FS)test, TFSU,Ad=Proposed Adaptive FS test, TFSU,Opt=Optimally Weighted FS Test.

Effect Size (Survival,ALS) No. Strata n m
TOU
TOU,Ad
TOU,Opt
TFSU
TFSU,Ad
TFSU,Opt
Moderate,Mild 2 50 50 45.7 48.6 59.6 48.1 49.2 59.6
100 100 73.9 78.9 87.2 77.8 79.4 87.4
4 25 25 47.0 49.3 58.9 49.2 48.5 58.9
50 50 74.6 78.8 87.0 77.6 78.2 87.0
Strong,Mild 2 30 30 45.4 55.5 70.8 47.7 56.0 70.8
60 60 75.2 85.7 95.3 78.1 86.7 95.3
4 15 15 47.1 59.0 73.4 50.8 58.8 73.4
30 30 76.1 87.2 95.1 78.4 87.0 95.1
Mild,Moderate 2 50 50 57.3 57.9 65.8 52.9 51.5 59.1
100 100 85.0 86.0 91.5 80.8 78.3 86.0
4 25 25 55.9 56.7 65.0 52.1 48.1 58.8
50 50 86.6 86.7 92.0 82.9 77.9 87.5
Mild,Strong 2 25 25 53.7 58.5 70.2 50.0 51.1 62.4
50 50 83.3 88.3 94.5 78.7 82.1 90.3
4 15 15 62.9 67.1 79.2 57.8 58.3 71.3
25 25 83.6 89.3 94.3 79.8 80.8 89.8
Moderate,None 2 50 50 22.0 38.7 63.7 31.3 44.4 63.7
100 100 38.9 67.1 89.5 55.3 74.0 89.5
4 25 25 23.7 44.0 61.9 33.3 46.9 61.9
50 50 39.8 72.1 89.7 56.4 76.7 89.7
None,Moderate 2 50 50 30.0 45.5 65.1 20.6 35.6 62.9
100 100 53.9 76.8 92.1 37.2 65.6 90.9
4 25 25 29.8 49.5 66.5 20.9 40.1 64.4
50 50 54.6 79.0 91.9 37.2 67.6 90.8
Moderate,Moderate 2 30 30 50.7 47.0 51.0 49.6 44.9 49.5
60 60 80.0 76.9 80.1 78.6 S74.4 78.6
4 15 15 50.3 45.2 50.3 48.9 41.9 48.9
30 30 80.2 75.0 80.2 78.5 69.7 78.3