Your question is unlikely to be answered unless you post code demonstrating the problem J
John David Sorkin M.D., Ph.D. Professor of Medicine Chief, Biostatistics and Informatics University of Maryland School of Medicine Division of Gerontology and Geriatric Medicine Baltimore VA Medical Center 10 North Greene Street<x-apple-data-detectors://12> GRECC<x-apple-data-detectors://12> (BT/18/GR) Baltimore, MD 21201-1524<x-apple-data-detectors://13/0> (Phone) 410-605-711<tel:410-605-7119>9 (Fax) 410-605-7913<tel:410-605-7913> (Please call phone number above prior to faxing) On Apr 14, 2020, at 3:23 PM, Haddison Mureithi <[email protected]> wrote: Hae guys, When performing a poisson regression sometimes one has to input the offset/exposure variable to account for individual time spent in a certain therapy before acquiring a certain condition of interest, whereby in r offset(log(months)) and in STATA offset(log(months)) results differ. Thereby increasing the difference of the overall outcome, i don't know why any one know why? [[alternative HTML version deleted]] ______________________________________________ [email protected] mailing list -- To UNSUBSCRIBE and more, see https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fstat.ethz.ch%2Fmailman%2Flistinfo%2Fr-help&data=02%7C01%7C%7Cb386607c67fa45f5ac3508d7e0a923cc%7C717009a620de461a88940312a395cac9%7C0%7C0%7C637224889939614430&sdata=VsicWcmiBw162nLk6CZGKx5pKW4SbBliXeYY%2BLYu90Q%3D&reserved=0 PLEASE do read the posting guide https://nam03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.r-project.org%2Fposting-guide.html&data=02%7C01%7C%7Cb386607c67fa45f5ac3508d7e0a923cc%7C717009a620de461a88940312a395cac9%7C0%7C0%7C637224889939614430&sdata=D4wrhP70NpBLjcE8Yd9JZCIykwqf4dDTla4Zkyk%2FQ5Q%3D&reserved=0 and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ [email protected] mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
