topic Re: Specifying Early, mid or late diagnostic based on a range of dates in SAS Data Management

Specifying Early, mid or late diagnostic based on a range of dates

edison83 — Mon, 20 Jan 2020 18:45:27 GMT

Hello everyone.

I want to specify or tag groups based on the diagnostic date.

For each group on the experiment, i have the start date of the experiment and the close date.

I also have the date that the diagnostic was reported from this group.

Based on that information, i want to specify if the diagnostic occurred:

on the first 30 days after the start date (EARLY)

on the last 30 days before the close date (LATE)

and any other date between this period (Mid)

Here is an example of the date and how it would be the desired information (Dx_Date Collumn)

Just a reminder, this data has 1700 rows.

Thanks guys

ORIGINAL DATA:

group_ID	receiveDate	StartDate	CloseDate	MortalityFINAL
1	8/12/2018	7/16/2018	12/13/2018	0.108813986
2	2/12/2019	1/21/2019	6/13/2019	0.200070493
3	9/18/2018	8/8/2018	12/20/2018	0.10570713
4	7/13/2018	7/2/2018	1/4/2019	0.118079133
5	2/24/2019	9/24/2018	3/1/2019	0.075649992
6	7/31/2018	4/23/2018	8/24/2018	0.078485479

DESIRED DATE:

group_ID	receiveDate	StartDate	CloseDate	MortalityFINAL	Dx_Date
1	9/27/2018	7/16/2018	12/13/2018	0.108813986	early
2	2/12/2019	1/21/2019	6/13/2019	0.200070493	early
3	9/18/2018	8/8/2018	12/20/2018	0.10570713	Mid
4	7/13/2018	7/2/2018	1/4/2019	0.118079133	early
5	10/24/2018	9/24/2018	3/1/2019	0.075649992	Late
6	7/31/2018	4/23/2018	8/24/2018	0.078485479	Late

Re: Specifying Early, mid or late diagnostic based on a range of dates

novinosrin — Mon, 20 Jan 2020 19:04:30 GMT

Hi @edison83 See if this helps



data have;
input group_ID	(receiveDate	StartDate	CloseDate) (:mmddyy10.)	MortalityFINAL;
format receiveDate	StartDate	CloseDate mmddyy10.;
cards;
1	8/12/2018	7/16/2018	12/13/2018	0.108813986
2	2/12/2019	1/21/2019	6/13/2019	0.200070493
3	9/18/2018	8/8/2018	12/20/2018	0.10570713
4	7/13/2018	7/2/2018	1/4/2019	0.118079133
5	2/24/2019	9/24/2018	3/1/2019	0.075649992
6	7/31/2018	4/23/2018	8/24/2018	0.078485479
;

data want;
 set have;
 length Dx_Date $5;
 if  StartDate<=   receiveDate<=intnx('day',StartDate,30) then Dx_Date='Early';
 else if  intnx('day',CloseDate,-30)<=receiveDate<=CloseDate then Dx_Date='Late';
 else if StartDate<= receiveDate<=CloseDate then Dx_Date='Mid';
run;

Re: Specifying Early, mid or late diagnostic based on a range of dates

edison83 — Mon, 20 Jan 2020 19:27:26 GMT

It worked perfectly, thanks a lot man!!!