DSDTC and DSSTDTC

m Manolya

on May 15, 2015

Hi!

I have a question regarding the DSDTC and DSSTDTC for Disposition Event Treatment for example. If a treatment starts on day 1 and ends on Day 10, what exactly is my DSDTC and DSSTDTC. The DSSTDTC would be my first treatment date (day 1) and my DSDTC (Date of Collection) would be the last treatment day / Or withdrawal day?. If so, then DSDTC is after DSSTDTC. Would the validator give me an error in that case?

Thanks for your help in advance!

Forums: SDTM

s Sergiy

on May 22, 2015

Hi Manolya, --DTC variable

Hi Manolya,

--DTC variable represents Date of collection.

You need to create two separate records and use DSSTDTC for storing Timing info about treatment Events.

Regards,

Sergiy

j Jozef

on May 25, 2015

DSDTC and DSSTDTC

In your example, DSSTDTC would be the withdrawal day, DSDTC the day the withdrawal was collected.
Usually these are identical, but an example where they are different can be found in the SDTM-IG 3.2 page 143, in the table row 16: subject died in a car accident (DSSTDTC=2003-10-19), but this was only collected two days later (DSDTC=2003-10-21).
Also be aware that there is no DSENDTC in DS, as start and end of the disposition are identical.

As Sergiy already stated, in your example, there will be two records, one for the start of the treatment, and one for the end of the treatment due to withdrawal.

This is also very well explained in the SDTM-IG, so you should read it.

m Manolya

on May 26, 2015

Hi ! I have read the

Hi !

I have read the SDTM-IG a couple of times regarding this, but still I always get confused with both of them, because the examples in the IG do not really show all scenarios.The car accident is obvious for me.

However, thanks for your answers!