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Multiple imputation inference for linear combinations of regression parameters

milincom[, indiv]:exp[,level(#)orirreform]where

expis a linear combination of coefficients, which is valid syntax fortest. Note thatexpmust not contain any additive constants nor equal signs (see lincom).

Description

milincomcomputes overall point estimates, standard errors,tstatistics,p-values, and confidence intervals for linear combinations of regression coefficients after mifit, using Rubin's combining rule. Results can optionally be displayed where appropriate as odds ratios, incidence rate ratios, or in generic "eform".

Options

level(#)specifies the confidence level, in percent, for confidence intervals.

or,irr, andeformall do the same thing; they all report coefficient estimates as exp(b) rather than b. Standard errors and confidence intervals are similarly transformed.oris the default after logistic. The only difference is how the output is labeled.Option Label Explanation Example commands ----------------------------------------------------------------------

orOdds Ratio Odds ratio logistic, logitirrIRR Incidence Rate Ratio poissoneformexp(b) Generic label

Examples

. mifit: xi: logistic drkreg i.sex*wave. milincom: wave + _IsexXwave_1This provides as estimate of the OR per wave among females.

AuthorsNing Li, Philip Greenwood, and John Carlin, Clinical Epidemiology & Biostatistics Unit, Murdoch Children's Research Institute and University of Melbourne. Email: jbcarlin@unimelb.edu.au

Also seeOnline: help for lincom, miset, miappend, mimerge, misave, mido, mici, mifit, mireset