topic Re: Array to count visits based on 2 conditions in SAS Programming

Array to count visits based on 2 conditions

Kim2009 — Sun, 03 Jul 2022 19:21:53 GMT

Hello -

I need help with the array below. I have several variables of interest which I’ve listed out. I want to count the number of visits that are acute care (ED or Hospital) and the number of visits that are not acute care (e.g., Dermatology, Podiatry, Physical Therapy). The 910 patients have a different number of visits. I need to base the 2 count variables on these conditions: if visit is not missing and visit is complete then count as Acute or Other. Right now, my code counts all Acute visits (viz_EDHosp_count) and all other non-Acute visits (viz_Other_count) regardless if the visit is complete or not. Is there a way to adapt the code below to obtain an accurate number of visits for each of the count variables by including if Stat1-Stat125 is complete then count? Thank you so much for your time.

Variables of interest

Urg1-Urg125: Visit urgency = Acute, Scheduled, Walk-in

Stat1-Stat125: Visit status = Complete, Cancel by Provider, Cancel by Patient, No Show

Array that I need help with

data y;

set x;

array _u (*) viz1 – viz125;

do _n_ =1 to dim(_u);

if ^ missing(_u[_n_]) then do;

viz_EDHosp_count=sum(viz_EDHosp_count,(_u(_n_)="Acute")); /*To capture acute visits*/

viz_Other_count= sum(viz_Other_count,(_u(_n_) ^= "Acute")); /*To capture nonacute visits such as PT, walk-in to audiology clinic*/

end;

run;

Re: Array to count visits based on 2 conditions

PaigeMiller — Sun, 03 Jul 2022 19:47:50 GMT

if visit is not missing and visit is complete then count as Acute or Other. Right now, my code counts all Acute visits (viz_EDHosp_count) and all other non-Acute visits (viz_Other_count) regardless if the visit is complete or not.

Define "visit is complete".

It would also help to show very small fake data, say 5 fake patients and 5 visits, and then show us what the result you want is for this fake data. Data should be provided as working SAS data step code which you can type in yourself or follow these instructions.

Re: Array to count visits based on 2 conditions

mkeintz — Sun, 03 Jul 2022 19:57:18 GMT

If you've tried the code you report, then please provide the corresponding log so that we can see what SAS said about your code.

And whether you've tried that code or not, please provide some sample data (only 5 or 6 visits should be sufficient), so that any code we offer can be pre-tested.

Help us help you.

Re: Array to count visits based on 2 conditions

PGStats — Sun, 03 Jul 2022 20:01:02 GMT

If you can run that code without errors, you only seem to need to extend what you already did with

array _v (*) stat1 – stat125;
...
if ^ missing(_u[_n_]) and _v(_v[_n_]) = "Complete" then do;

Re: Array to count visits based on 2 conditions

Kim2009 — Sun, 03 Jul 2022 21:52:17 GMT

Thank you for your reply Paige Miller. A visit is complete if the patient arrived to the appointment and the provider (or nurse in some instances) checked the patient out after the appointment ended or a discharged disposition in the case of an acute encounter (ED or Hospitalization) was available in the chart. I've included some fake data as requested and also have included the SAS code I used to obtain "Results generated by current code" (refer to table that contains the fake data).

I appreciate any help you're able to provide. Thanks again.

data y;

set x;

array _u (*) viz1 – viz125;

do _n_ =1 to dim(_u);

if ^ missing(_u[_n_]) then do;

viz_EDHosp_count=sum(viz_EDHosp_count,(_u(_n_)="Acute")); /*To capture acute visits*/

viz_Other_count= sum(viz_Other_count,(_u(_n_) ^= "Acute")); /*To capture nonacute visits such as PT, walk-in to audiology clinic*/

end;

end;

run;

Results generated by current code

Results that I want

vizdate1

type1

urg1

stat1

vizdate2

type2

urg2

stat2

vizdate3

type3

urg3

stat3

vizdate4

type4

urg4

stat4

viz_EDHosp_count

viz_Other_count

viz_EDHosp_count

viz_Other_count

7/1/2019

acute

complete

8/14/2019

ear_nose_throat

scheduled

complete

6/10/2019

Hospital

acute

complete

5/1/2020

Podiatry

walk-in

complete

3/8/2020

Psych

unscheduled

complete

9/10/2019

acute

complete

2/22/2022

Hospital

acute

complete

3/16/2022

Hospital

acute

complete

5/6/2022

Cardiology

scheduled

Noshow

7/1/2022

endocrinology

scheduled

complete

3/23/2020

acute

complete

4/18/2020

scheduled

complete

5/16/2020

scheduled

Canceled by provider

5/16/2020

scheduled

Noshow

12/13/2020

Audiology

scheduled

Canceled by patient

8/12/2020

Audiology

scheduled

Noshow

9/17/2020

acute

complete

Re: Array to count visits based on 2 conditions

Kim2009 — Sun, 03 Jul 2022 22:06:07 GMT

Correcting how data are displayed in the last 4 columns of the table with the fake data. My apologies for the formatting error. Thanks again.

Results generated by current code Results that I need

id viz_EDHosp_count viz_Other_count viz_EDHosp_count viz_Other_count

1 2 1 2 1

2 1 2 1 2

3 2 2 2 1

4 1 3 1 1

5 1 2 1 0

Re: Array to count visits based on 2 conditions

Kim2009 — Sun, 03 Jul 2022 22:11:47 GMT

Thanks for your help. The code I shared on the forum runs without producing an error message. I will add what you've provided to my code when I return to work next week. I'll let you know if it works. Thanks again.