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. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Contemp Clin Trials. 2012 May;33(3):550–556. doi: 10.1016/j.cct.2012.02.004

Table B.2.

Sample Size (Empirical Power) from Simulation 1, Power = 0.9

ρ P ϕ = 0 CS ϕ = 0.25 ϕ = 0.5 ϕ = 0.75 ϕ = 1 AR(1)
(a) Random missing
0.1 P1 307(0.893) 360(0.903) 426(0.899) 495(0.901) 560(0.895)
P2 294(0.902) 349(0.903) 416(0.906) 486(0.900) 553(0.902)
P3 282(0.905) 338(0.909) 406(0.899) 478(0.899) 546(0.900)
P4 263(0.907) 318(0.904) 384(0.898) 454(0.902) 521(0.902)
0.25 P1 438(0.898) 508(0.895) 579(0.900) 643(0.897) 699(0.899)
P2 425(0.897) 497(0.902) 569(0.898) 635(0.904) 691(0.894)
P3 413(0.900) 487(0.903) 560(0.904) 627(0.901) 685(0.902)
P4 395(0.899) 466(0.903) 538(0.900) 603(0.899) 660(0.895)
0.5 P1 656(0.905) 720(0.904) 775(0.896) 821(0.904) 858(0.898)
P2 643(0.904) 709(0.899) 765(0.901) 811(0.902) 849(0.888)
P3 631(0.906) 698(0.896) 775(0.902) 802(0.905) 841(0.905)
P4 613(0.903) 679(0.901) 735(0.905) 781(0.897) 818(0.907)
(b) Monotone missing
0.1 P1 321(0.899) 385(0.905) 463(0.901) 545(0.904) 624(0.899)
P2 301(0.902) 362(0.904) 436(0.903) 514(0.905) 588(0.910)
P3 284(0.900) 342(0.900) 413(0.896) 488(0.899) 558(0.910)
P4 263(0.905) 318(0.906) 384(0.907) 454(0.901) 521(0.904)
0.25 P1 473(0.902) 557(0.898) 641(0.911) 718(0.904) 784(0.900)
P2 443(0.893) 523(0.898) 602(0.898) 675(0.902) 737(0.896)
P3 418(0.901) 495(0.905) 571(0.909) 640(0.898) 700(0.906)
P4 395(0.898) 466(0.898) 538(0.899) 603(0.911) 660(0.903)
0.5 P1 726(0.898) 802(0.907) 868(0.900) 922(0.892) 966(0.897)
P2 679(0.897) 752(0.896) 814(0.898) 865(0.903) 906(0.905)
P3 642(0.906) 711(0.903) 770(0.895) 819(0.898) 858(0.894)
P4 613(0.904) 679(0.904) 735(0.900) 781(0.908) 818(0.905)