Dear experts,
I am a newbie. After using stci command, stci if factorA==0, by(factorB), I've got the following outputs.
failure _d: pfsevent
analysis time _t: (pfsexitdate-origin)/365.25
origin: time dateofdiagnosis
id: id
| no. of
factorB | subjects 50% Std. Err. [95% Conf. Interval]
-------------+-------------------------------------------------------------
1 | 9 5.054073 1.620295 .536619 .
2 | 13 1.585216 .3395563 .44627 3.66051
-------------+-------------------------------------------------------------
total | 22 2.047912 1.240971 .991102 5.05407
Why was the upper 95% confidence limit when factorB value = 1 absent??
And it seems the median survival values I've got were different from the that I read from the graph produced by the following 2 Stata commands:
.stcox outcome factorA factorB
.stcurve, survival at1(factorB=0) at2(factorB=1)
Is it not a multivariate adjusted medians survival?
Please advise.
Thank you very much..
Regards,
Lee
I am a newbie. After using stci command, stci if factorA==0, by(factorB), I've got the following outputs.
failure _d: pfsevent
analysis time _t: (pfsexitdate-origin)/365.25
origin: time dateofdiagnosis
id: id
| no. of
factorB | subjects 50% Std. Err. [95% Conf. Interval]
-------------+-------------------------------------------------------------
1 | 9 5.054073 1.620295 .536619 .
2 | 13 1.585216 .3395563 .44627 3.66051
-------------+-------------------------------------------------------------
total | 22 2.047912 1.240971 .991102 5.05407
Why was the upper 95% confidence limit when factorB value = 1 absent??
And it seems the median survival values I've got were different from the that I read from the graph produced by the following 2 Stata commands:
.stcox outcome factorA factorB
.stcurve, survival at1(factorB=0) at2(factorB=1)
Is it not a multivariate adjusted medians survival?
Please advise.
Thank you very much..
Regards,
Lee
