(SAS) EPIDEMIOLOGY
SAS 6: Computing SMR Standardized Mortality Rate by Strata (SMR) This assignment teaches you a little more about reading in data with SAS and also how to compute standardized mortality rates both overall and by strata. In Part A, you will compute the SMR for skin cancer and compare that to the US as the reference population. In Part B, you will compute the SMR stratified by age. Complete code is given below. 1. Run the code for the two analyses. 2. Answer this question referring to your results? Does the first analysis show a difference in SMR for skin cancer between Florida and the US as a whole? 3. Answer this question referring to your results? Does the second analysis, by strata, show a difference in SMR for skin cancer between Florida and the US as a whole? /* Assignment 5: PROC STDRATE */ /* Part A: Comparing Florida to US */ DATA florida_all ; event_f = 538 ; total_f = 15658227 ; DATA us_all ; event_u = 7420 ; total_u = 281422206 ; PROC STDRATE DATA=florida_all REFDATA=us_all METHOD=INDIRECT STAT=RATE(MULT=100000) PLOTS=ALL; POPULATION EVENT=event_f TOTAL=total_f; REFERENCE EVENT=event_u TOTAL=total_u; /* Part B: Comparing Florida to US */ /* By Strata */ DATA florida; INPUT Age $1-5 Event PYear comma11.; DATALINES; 00-04 0 953,785 05-14 0 1,997,935 15-24 4 1,885,014 25-34 14 1,957,573 35-44 43 2,356,649 45-54 72 2,088,000 55-64 70 1,548,371 65-74 126 1,447,432 75-84 136 1,087,524 85+ 73 335,944 ; DATA US; INPUT Age $1-5 Event comma7. PYear comma12.; DATALINES ; 00-04 0 19,175,798 05-14 1 41,077,577 15-24 41 39,183,891 25-34 186 39,892,024 35-44 626 45,148,527 45-54 1,199 37,677,952 55-64 1,303 24,274,684 65-74 1,637 18,390,986 75-84 1,624 12,361,180 85+ 803 4,239,587 ; PROC STDRATE DATA=Florida REFDATA=US METHOD=INDIRECT STAT=RATE(MULT=100000) PLOTS=ALL ; POPULATION EVENT=Event total=PYear; REFERENCE EVENT=Event total=PYear; STRATA Age / STATS SMR; RUN; An Attachment of the results from this code is done for you already. Results_ Program 1