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. 2017 Jun 12;19(1):103–118. doi: 10.1093/biostatistics/kxx029

Table 2.

Point estimates, standard error (SE) of the estimators, and 95% CI of the estimated causal effect for each estimator

Estimator Inline graphic Inline graphic Inline graphic SE 95% CI
ITT 22.18 15.37 6.81 1.57 (3.78, 10.07)
Causal estimators
 Per protocol 22.18 15.12 7.07 1.80 (3.61, 10.63)
 Self-report IPW 22.18 15.19 6.99 1.67 (3.66, 10.38)
 Cutoff IPW 22.18 14.83 7.35 3.03 (1.64, 12.99)
 CURE 22.18 14.98 7.20 2.79 (2.01, 12.46)

Inline graphic : mean cigarettes smoked per day for the usual brand group; Inline graphic: mean cigarettes smoked per day for the VLNC group if all participants were to be compliant.