Hello, I have a multiple claims from 2016 to 2021. I want to find the total records by (patid) in all the claims without counting any patid twice so I can find the descriptive analysis. For example, In 2016, I want patid=2, In 2017, patid=3, In 2018,patid=3, In 2019, patid=4, In 2020, patid=5. For the Total N, I dont want to count a patid twice so Total N=5 for patid2016-2021 I am not sure how to do this in SAS. Please help. Thanks Data Test2016;
input patid $ clmid $ dtstart :YYMMDD10.;
format dtstart YYMMDD10. ;
datalines;
001 abc 2017-01-01
001 def 2017-02-01
001 ghi 2017-05-01
002 xvu 2018-01-01
002 cde 2018-02-20
;
run;
Data Test2017;
input patid $ clmid $ dtstart :YYMMDD10.;
format dtstart YYMMDD10. ;
datalines;
001 abc 2017-01-01
001 def 2017-02-01
001 ghi 2017-05-01
002 xvu 2018-01-01
002 cde 2018-02-20
003 adt 2020-03-25
003 tyh 2021-01-15
;
run;
Data Test2018;
input patid $ clmid $ dtstart :YYMMDD10.;
format dtstart YYMMDD10. ;
datalines;
001 abc 2017-01-01
001 def 2017-02-01
001 ghi 2017-05-01
002 xvu 2018-01-01
002 cde 2018-02-20
003 adt 2020-03-25
003 tyh 2021-01-15
;
run;
Data Test2019;
input patid $ clmid $ dtstart :YYMMDD10.;
format dtstart YYMMDD10. ;
datalines;
001 abc 2017-01-01
001 def 2017-02-01
001 ghi 2017-05-01
002 xvu 2018-01-01
002 cde 2018-02-20
003 adt 2020-03-25
003 tyh 2021-01-15
004 wse 2020-03-25
004 def 2021-01-15
;
run;
Data Test2020;
input patid $ clmid $ dtstart :YYMMDD10.;
format dtstart YYMMDD10. ;
datalines;
001 abc 2017-01-01
001 def 2017-02-01
001 ghi 2017-05-01
002 xvu 2018-01-01
002 cde 2018-02-20
003 adt 2020-03-25
003 tyh 2021-01-15
004 wse 2020-03-25
004 def 2021-01-15
005 aaa 2020-03-25
005 bbb 2021-01-15
;
run;
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