Hi, I obtained relative risk (RR) using PROC PHREG for a continuous predictor. By default, the RR was calculated for a unit INCREASE of the predictor, However, what I want to obtain is the ratio per a unit DECREASE. In other words, SAS calculates "(risk in a higher level) / (risk in a lower level)" but I want to make SAS to calculated "(risk in a lower level) / (risk in a higher level)." If you know how to obtain relative risk or odds ratio per a unit decrease of a continuous predictor with a command other than PROC PHREG (i.e., PROC REG, PROC LOGISTICS, etc...), please share your knowledge. Following are the codes that I used. proc phreg data=please; model time*event(0)=continuous_predictor; run; Thanks!
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