Correlation structure in inverse-probability-weighted analyses of repeated measures.

Tchetgen ET, Glymour MM, Weuve J, Robins JM. A cautionary note on specification of the correlation structure in inverse-probability-weighted estimation for repeated measures. Epidemiology 2012 Jul;23(4):644-646.

Clarification on the methods used in this paper on using inverse probability of attrition weights to account for selective attrition.

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