Smr

[Bharat Thakrar]

I have downloaded the SMR ado from STB. However when I try to use it, I am getting :
"command _crccip is unrecognized
r(199); "

I am using version 15. Any help appreciated as I am reconnecting to stata after several years.
Thank you.
-BT

[daniel klein]

smr seems to be from 1993 and written for Stata version 3. My guess is that _crccip was an undocumented command, that worked more than twenty years ago, but does no longer work in modern Stata. Even if it did work, I would not necessarily rely on an ancient user-written command to do something that you can probably get what you want from official Stata

help ci

Best
Daniel

[Erik Holmberg]

The SMR ado works in Stata 14. Insted the command "cii means #exp #obs, poisson" can be used in Stata 15.
An example, if there are 902 expected and 979 observed cases you will get SIR=1.085 with 95% CI 1.018-1.156:

cii means 902 979 ,poisson

-- Poisson Exact --
Variable | Exposure Mean Std. Err. [95% Conf. Interval]
-------------+----------------------------------------------------------------------------------
| 902 1.085366 .0346884 1.018434 1.155541

Best,
Erik

[Bjarte Aagnes]

_crccip has been superseded by invpoisson()

https://www.statalist.org/forums/for...34#post1397934