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st: RE: flagging significant values in a variable

 From Tim Evans To "'statalist@hsphsun2.harvard.edu'" Subject st: RE: flagging significant values in a variable Date Fri, 2 Mar 2012 10:14:09 +0000

```Hi,

I did come up with a solution, but its probably not that clean, but it worked:

gen LCI3 = LCI if region==99
gen UCI3 = UCI if region==99
replace  LCI3 = LCI3[_n-1] if missing(LCI3)
replace  UCI3 = UCI3[_n-1] if missing(UCI3)
gen long flag=.
replace flag = 1 if  LCI> UCI3 & region!=99
replace flag = 2 if UCI<LCI3 & region!=99
replace flag = 0 if flag==. & region !=99
label define sig_test 0 "Not sig" 1 "Sig higher" 2 "Sig lower"
label values flag sig_test
drop UCI3 LCI3
sort region
list end - flag

+---------------------------------------------------+
| end    rate      LCI      UCI   region      flag |
|---------------------------------------------------|
1. |   5   0.9727   0.9583   0.9849        1   Not sig |
2. |   5   0.9713   0.9523   0.9867        2   Not sig |
3. |   5   0.9835   0.9667   0.9971        3   Not sig |
13. |   5   0.9790   0.9741   0.9836       99         . |
+---------------------------------------------------+

Is there a better way?

Best wishes

Tim

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Tim Evans
Sent: 02 March 2012 09:25
To: 'statalist@hsphsun2.harvard.edu'
Subject: st: flagging significant values in a variable

Hi,

I have a dataset that has variables of rates, LCI and UCI for a number of regions in addition to a national average (rate, LCI, UCI) so that it looks like this:

rate		LCI		UCI		region
0.9727	0.9583	0.9849	1
0.9713	0.9523	0.9867	2
0.9835	0.9667	0.9971	3
0.9790	0.9741	0.9836	99

What I would like to do is generate a flag beside each row that will flag up entries where they are significantly higher (1) or lower (2) or not significantly different (0) to region 99 - I'm unsure as to the code here and would appreciate any advice. I'm using Stata 11.2.

Best wishes

Tim
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