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. Author manuscript; available in PMC: 2018 Dec 1.
Published in final edited form as: Health Serv Outcomes Res Methodol. 2016 Dec 26;17(3-4):175–197. doi: 10.1007/s10742-016-0168-2

Table 6.

Treatment effect estimates using each approach with corresponding standard error, p-value, design effect, maximum ASB and number of trees for abstinence study; tm(Y, X) indicates the MSE-based method that uses outcome information, tm(X) indicates the MSE-based method that does not use outcome information, ta(0.20) and ta(0.10) indicate the ASB-based methods that use a 0.20 and 0.10 threshold, respectively, tp(0.05) and tp(0.10) indicate the p-value based methods that use a 0.05 and 0.10 threshold, respectively

Case study: Abstinence

Unweighted twang ta(0.20) ta(0.10) tm(Y, X) tm(X) tp(0.05) tp(0.10)
Estimate 1176.48 1151.26 1357.08 1307.31 1177.8 1357.08 1361.71 1357.08
SE 417.93 516.51 445.36 465.55 417.98 445.36 439.78 445.36
p-value 0.01 0.03 < 0.01 0.01 0.01 < 0.01 < 0.01 < 0.01
Design effect 1.00 1.74 1.25 1.42 1.00 1.25 1.21 1.25
Maximum ASB 1.01 0.05 0.18 0.10 1.00 0.18 0.24 0.18
Number of trees 2797 286 743 1 286 229 286