Calculate relapse rate from the end of a therapy

NewUsrStat — Fri, 04 Nov 2022 08:12:03 GMT

Hi guys,

suppose to have the following:

data have1; input ID :$20. Start_Therapy :date9. End_Therapy :date9. Relapse :$20. End_follow_up :$20.; format Start_Therapy End_Therapy End_follow_up yymmdd10.; cards; 0001 01JAN2015 30APR2018 yes 21JAN2021 0002 01MAY2007 31MAY2019 no 20DEC2021 0003 01JUN2011 31DEC2018 yes 12JAN2020 0004 06FEB2018 08FEB2021 yes 12APR2022 0005 09FEB2000 31AUG2018 no 01SEP2020 0006 01SEP2012 31DEC2019 yes 03MAR2021 0007 01JAN2011 30SEP2019 yes 06JUL2021 0008 01OCT2019 31DEC2020 no 21JAN2021 ;

I have to calculate the relapse rate and I have to also use a statistical test to get the significance but I have no idea on how to do it.

Can anyone help me please?

I know that I have to calculate the person-time from the End_Therapy to the End_follow_up but I don't know how to do it since I'm new in the field.

Re: Calculate relapse rate from the end of a therapy

PaigeMiller — Fri, 04 Nov 2022 11:01:19 GMT

You can use PROC FREQ — example: https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.4/statug/statug_freq_examples04.htm

topic Calculate relapse rate from the end of a therapy in New SAS User

Calculate relapse rate from the end of a therapy

Re: Calculate relapse rate from the end of a therapy