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st: parmby: obtaining exponentiated results from Cox regression

From   Michael McCulloch <>
To   Statalist <>
Subject   st: parmby: obtaining exponentiated results from Cox regression
Date   Tue, 17 Oct 2006 10:20:16 -0700

I am using -parmby- to list results of several different Cox regression models. As I am planning to compare many different models, I would like to ask how to efficiently display that hazard ratios and their confidence intervals, without needing to manually transform them.

Whether or not I specify -nohr- option during the Cox regression, -parmby- gives me the coefficients in both cases, whereas I would like to display the coefficients in one line, and the hazard ratios in the other.

*run models with and without hazard ratio
parmby "stcox var1", lab saving (tf1, replace) idn(1) ids(Hazard ratio)
parmby "stcox var1, nohr", lab saving (tf2, replace) idn(2) ids(no hazard ratio)
dsconcat tf1 tf2
* format effect size & confidence intervals to 2 decimal places
format estimate min* max* %8.2f
* format p-value to 2 decimal places
format p %8.2e
*concise table of results
list estimate min95 max95 p if parmseq==1, clean noobs

idstr estimate min95 max95 p
Hazard ratio -0.68 -0.99 -0.37 1.4e-05
no hazard ratio -0.68 -0.99 -0.37 1.4e-05

Best wishes,
Michael McCulloch


Michael McCulloch
Research Director, Pine Street Foundation
124 Pine Street, San Anselmo, CA 94960-2674
tel 415.407.1357
fax 415.485.1065

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