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01/20141 EPI 5344: Survival Analysis in Epidemiology SAS code and output March 4, 2014 Dr. N. Birkett, Department of Epidemiology & Community Medicine,

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Presentation on theme: "01/20141 EPI 5344: Survival Analysis in Epidemiology SAS code and output March 4, 2014 Dr. N. Birkett, Department of Epidemiology & Community Medicine,"— Presentation transcript:

1 01/20141 EPI 5344: Survival Analysis in Epidemiology SAS code and output March 4, 2014 Dr. N. Birkett, Department of Epidemiology & Community Medicine, University of Ottawa

2 Recidivism data set 432 male prison inmates from the early 1970’s Test of a financial support programme (RCT) Followed for 1 year post-release Data collected weekly Primary outcome –re-arrest (recidivism) 26% re-arrested Data includes –financial aid group –age –race –# prior arrests –parole status 01/20142

3 3 Obsweekarrestfinageracewexmarparoprio 120102710013 217101810018 3251019010113 452012311111 552001901013 652002411002 723102511110 852012111014 952002210006 1052002011000 1152012610013 1252004011002 1337101711015 1452003711002 1525102010013 1646112211012 1728101910007 1852002010002 19520025100112 2052002401011 Recidivism data (first 20 cases)

4 01/20144 ODS GRAPHICS ON; ODS RTF; PROC LIFETEST DATA=allison.recid PLOTS=S(test atrisk) TIMELIST=1 to 52; TIME week*arrest(0); strata fin/tests=all; RUN; ODS RTF close; ODS GRAPHICS OFF;

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12 01/201412 ODS GRAPHICS ON; ODS RTF; PROC LIFETEST DATA=allison.recid; TIME week*arrest(0); STRATA age(21 24 28); RUN; ODS RTF close; ODS GRAPHICS OFF;

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15 01/201415 ODS GRAPHICS ON; ODS RTF; PROC LIFETEST DATA=allison.recid; TIME week*arrest(0); TEST fin age race wexp mar paro prio; RUN; ODS RTF close; ODS GRAPHICS OFF;

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