tag:blogger.com,1999:blog-8189895374277303751.post4456191816766468155..comments2023-04-22T21:09:30.165-07:00Comments on Working on and with CDISC Standards: Null flavors in SDTM - a good idea?XML4Pharmahttp://www.blogger.com/profile/05523910878300565120noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-8189895374277303751.post-9717329887783650442017-05-15T11:32:05.622-07:002017-05-15T11:32:05.622-07:00Thanks Vojtech!
I must say honestly that I change...Thanks Vojtech! <br />I must say honestly that I changed my opinion a bit since I wrote this blog. In Austria's EHR system, we have constrainted the null flavors to only 3 or 4 values or so, which I think is OK. However, I am still convinced that using "PINF" to state that there is no upper limit is abuse. Semantically, one cannot say that a value is at the same time "null" and "infinite".XML4Pharmahttps://www.blogger.com/profile/05523910878300565120noreply@blogger.comtag:blogger.com,1999:blog-8189895374277303751.post-87637217346573603542017-05-15T11:25:50.303-07:002017-05-15T11:25:50.303-07:00Null flavors are important. Nulls can be part of t...Null flavors are important. Nulls can be part of the data element or be handled by some other mechanism. Vojtech Huserhttps://www.blogger.com/profile/17180875686156096790noreply@blogger.com