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. Author manuscript; available in PMC: 2015 Jan 30.
Published in final edited form as: Stat Med. 2013 Jul 3;33(2):10.1002/sim.5890. doi: 10.1002/sim.5890

Table 5.

Simulating Randomized Trials

Conditions for Treatment Time of Randomization Comparison Mean Est SD Est Mean SE
Randomized Trial A: Simple Randomization at Baseline
At risk at:
 baseline baseline No Treatment −1.104 0.091 0.085
 3 years baseline No Treatment −0.869 0.085 0.081
 6 years baseline No Treatment −0.443 0.074 0.073

Randomized Trial B: SADT by Indication v’s no SADT
Pos. slope & PSA above: First time PSA above:
 1  1 No Treatment −1.332 0.073 0.072
 2  2 No Treatment −1.374 0.071 0.073
 3  3 No Treatment −1.397 0.081 0.075

Randomized Trial C: Early v’s Late SADT
Pos. slope & PSA above: First time PSA above: Treatment when PSA above:
 1  1  2 −0.340 0.081 0.080
 1  1  3 −0.689 0.076 0.077
 2  2  3 −0.520 0.076 0.078
 2  2  4 −0.825 0.073 0.076

Randomized Trial D: Immediate v’s SADT by Indication
At risk at: Treatment when PSA above:
 baseline baseline  1 −0.103 0.103 0.100
 baseline baseline  2 −0.374 0.099 0.095
 baseline baseline  3 −0.644 0.097 0.091