Hello,   I get this error as soon as I include the plots line. When I take it out it runs but I really want to have a graph for this.      ods graphics on; proc causaltrt data=thesis covdiffps; class RACE_ETHNICITY_4CAT numeric_urban HMI070 /desc; psmodel numeric_urban = age_consent HMI070 RACE_ETHNICITY_4CAT; /plots=(PSDist pscovden(effects(numeric_urban age_consent)) ); model numeric_mdro; run;       ... View more

Hello,    I am trying to see if I can do a propensity score analysis and which kind with my data.    I am looking at rural and urban communities and whether there is a relationship on where they live and Multi-drug resistant organisms. I am working with covariates as well:Age,Gender,Race/Ethnicity,Education level,Income level,Antibiotic use,Residence,Water,source,Insurance type,Number of people living in household   Can you guys help me with this?  ... View more

  This is my code to get OR and CIs.    PROC LOGISTIC DATA=thesis; CLASS RUCA_3CAT (ref = "Urban") / PARAM=REF; MODEL mdro_res (EVENT = "negative") = RUCA_3CAT / ALPHA=0.03125; RUN;   I am getting "Invalid reference value for RUCA_3CAT" the categories for this are: urban,rural, suburban and for mdro_res: positive and negative     Can someone help me figure out what's wrong with my code?    thanks    ... View more

  Hello,    I am trying to figure out the prevalence of MDROs in urban and rural communities in my state. My professors say I need the proportion with 95% CI for which I am using the following code:   proc freq data=thesis order=data; tables RUCA_3CAT*mdro_res / chisq relrisk; exact pchi or; title 'RUCA MDRO RES'; run;   ***ruca_3cat is the variable for where the participants live and mdro_res is for MDRO results I am not sure I am using the right thing for this, specially as this is not giving me odds ratios. Can someone help with this?      Thanks,  LSAK ... View more