. Author manuscript; available in PMC: 2015 Jul 20.

Published in final edited form as: Stat Med. 2014 Mar 5;33(16):2797–2813. doi: 10.1002/sim.6123

Table 3.

Ever smoking effect on CCA IMT from doubly-robust (DR) estimation with five strategies for computing the propensity scores and the predicted outcome values

Strategies

Δ̂

\sqrt{\hat{V} (\hat{Δ})}

95% CI^*

1: Full^**

49.83

28.36

(−5.76, 105.42)

2: MA with (α^X, α^Y)^***

47.02

29.05

(−9.92, 103.95)

3: BAC with (α^X, α^Y)

47.07

29.02

(−9.81, 103.95)

4: MA with (α^Y, α^Y)

60.95

24.27

(13.37, 108.52)

5: BAC with (α^Y, α^Y)

50.03

28.37

(−5.58, 105.64)

Δ̂: ever smoking effect estimate (μm); $\sqrt{\hat{V} (\hat{Δ})}$ : associated standard error;

( $\hat{Δ} \pm 1.96 \sqrt{\hat{V} (\hat{Δ})}$ );

^**

all covariates used for computing both the propensity scores and the predicted outcome values;

^***

the first argument of the parentheses indicates the model used for the calculation of the propensity scores and the second argument indicates the model used for the calculation of the predicted outcome values.