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. Author manuscript; available in PMC: 2018 Jan 22.
Published in final edited form as: Int J Biostat. 2016 Nov 1;12(2):/j/ijb.2016.12.issue-2/ijb-2015-0034/ijb-2015-0034.xml. doi: 10.1515/ijb-2015-0034

Table 6.

Distributions of the stabilized weights from four different propensity score models

Model Mean SD Maximum Median Minimum
NULL 1 0 1 1 1
Simple(W1a) 1 0.26 1.94 0.87 0.62
Intermediate(W2b) 0.999 1.74 232.30 0.63 0.42
Full(W3c) 1.00 2.78 1698 0.61 0.42
a

W1: Predefined important confounders (age, sex, obesity, smoking, history of diabetes);

b

W2: All pre-specified confounders;

c

W3: All potential confounders (W2 + the 400 empirical selected variables).