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st: Graphing odds ratios


From   "McGrath, Andrew (Psychology)" <amcgrath@csu.edu.au>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: Graphing odds ratios
Date   Thu, 18 Apr 2013 20:40:10 +1000

Dear all

Using these previous very informative posts:
http://www.stata.com/statalist/archive/2011-08/msg01156.html
http://www.stata.com/statalist/archive/2011-12/msg00542.html

I have graphed the odds ratios and confidence intervals using -parmest- and -egenmore- using Stata 11.

This is the code I have used:

**
logit prison  i. age_in_gen cr_hist i.legrep i.bail_rec seifa_indexq osi_qu aria_index i.count_dic i.concurr_dic


egen axis= axis(estimate), label(parm)

keep if inlist(parm,"Indigenous male, 17-21", "Indigenous male, 10-16", ///
"Non-Indigenous male, 17-21", "Non-Indigenous male, 10-16", "Indigenous female, 17-21", ///
"Indigenous female, 10-16", "Non-Indigenous female, 17-21", "Non-Indigenous female, 10-16")

twoway bar  estimate axis, base(1) horizontal barw(.5) ///
           xline(1) ylab(#8, valuelabel angle(45)) ||             ///
      rcap min95 max95 axis, horizontal               ///
           legend(order(1 "point estimate"            ///
                        2 "95% conf. int.") pos(6))   ///
           xtitle("odds ratio") ytitle("")

**

I only want to graph the odds ratios for the indicator variable age_in_gen however in
my final graph the variable legrep is appearing. I can't see the error in my
code that is causing this.

The following code gives the graph I want but only with the variable names, not labels:

**
logit prison  i. age_in_gen cr_hist i.legrep i.bail_rec seifa_indexq osi_qu aria_index i.count_dic i.concurr_dic
parmest, norestore eform

keep if inlist(parm, "1b.age_in_gen", "2.age_in_gen", "3.age_in_gen", ///
"4.age_in_gen", "5.age_in_gen", "6.age_in_gen", "7.age_in_gen", "8.age_in_gen")

egen axis= axis(estimate), label(parm)
twoway bar  estimate axis, base(1) horizontal barw(.5) ///
xline(1) ylab(1(1)8, valuelabel angle(45)) || rcap min95 max95 axis, ///
horizontal legend(order(1 "point estimate" 2 "95% conf. nt.") pos(6)) ///
xtitle("odds ratio") ytitle("")
**

Apologies for the lengthy post and many thanks for your consideration.

Best wishes
Andrew
Charles Sturt University

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