Dear Stata list
I am comparing the 4 treatment over time.
i did a logrank test to see the strata (0,1,2,3) are equality.( which is significant)
also so i did logrank test for pairwise (0 vs1, 0vs2, 0vs3, 1vs2, 1vs3, 2vs3)
sts test trt, logrank
sts test trt if trt~=2 & trt~=3, logrank
sts test trt if trt~=1 & trt~=3, logrank
sts test trt if trt~=1 & trt~=2, logrank
sts test trt if trt~=0 & trt~=2, logrank
sts test trt if trt~=0 & trt~=3, logrank
sts test trt if trt~=0 & trt~=1, logrank
i did also landmark analysis, 1, 3 and 5 years in these 3 interval there is not significant different between treatment,
sts test trt if landmark==1
sts test trt if landmark==3
sts test trt if landmark==5
my supervisor ask me to do a adjustment for multiple comparison for the logrank test.
I look at the sas example
http://support.sas.com/documentation...examples02.htm
i try to do it in stata , i need advice
i am attaching the data
********here is the program**********************
cd "C:\statistics\survival"
import delimited C:\statistics\survival\bmt.csv, clear
*a data frame with 137 observations on the following 22 variables.
la de group 1 "1-ALL" 2 "AML low-risk" 3 "high-risk"
la val group group
la var t2 "disease-Free survival time"
rename t2 T
rename d1 Status
la de Status 1 "Dead" 0 "Alive"
la val Status Status
la var d2 "relapse indicator"
la de d2 1 "Relapsed" 0 "Disease-Free"
stset T, failure(Status)
sts graph, by(group) risktable
sts test group
can you please advice me how can i do it after adjustment in stata.
Thanks
Sugi
