topic How to output the standard error of prediction in PROC logistic? in Statistical Procedures https://communities.sas.com/t5/Statistical-Procedures/How-to-output-the-standard-error-of-prediction-in-PROC-logistic/m-p/20686#M606 In the output of PROC logistic, I can get the upper (UCL) and lower (LCL) confidence limits of the predicted probability. Can I use the formula (UCL-LCL)/(2*1.96) to get the standard error of the prediction? It seems to me that the standard error produced by this formula is way smaller than I would expect. Wed, 12 May 2010 19:44:53 GMT deleted_user 2010-05-12T19:44:53Z How to output the standard error of prediction in PROC logistic? https://communities.sas.com/t5/Statistical-Procedures/How-to-output-the-standard-error-of-prediction-in-PROC-logistic/m-p/20686#M606 In the output of PROC logistic, I can get the upper (UCL) and lower (LCL) confidence limits of the predicted probability. Can I use the formula (UCL-LCL)/(2*1.96) to get the standard error of the prediction? It seems to me that the standard error produced by this formula is way smaller than I would expect. Wed, 12 May 2010 19:44:53 GMT https://communities.sas.com/t5/Statistical-Procedures/How-to-output-the-standard-error-of-prediction-in-PROC-logistic/m-p/20686#M606 deleted_user 2010-05-12T19:44:53Z Re: How to output the standard error of prediction in PROC logistic? https://communities.sas.com/t5/Statistical-Procedures/How-to-output-the-standard-error-of-prediction-in-PROC-logistic/m-p/20687#M607 when you do logistic regression, you get ODD RATIO. check <A href="http://slack.ser.man.ac.uk/theory/association_odds.html" target="_blank">http://slack.ser.man.ac.uk/theory/association_odds.html</A>. You have to log your CI first. Sun, 23 May 2010 21:41:55 GMT https://communities.sas.com/t5/Statistical-Procedures/How-to-output-the-standard-error-of-prediction-in-PROC-logistic/m-p/20687#M607 deleted_user 2010-05-23T21:41:55Z Re: How to output the standard error of prediction in PROC logistic? https://communities.sas.com/t5/Statistical-Procedures/How-to-output-the-standard-error-of-prediction-in-PROC-logistic/m-p/20688#M608 The confidence limits for the predicted probabilities are computed as shown in the "Details: Linear Predictor, Predicted Probability, and Confidence Limits" section of the LOGISTIC documentation:<BR /> <BR /> <A href="http://support.sas.com/documentation/cdl/en/statug/63033/HTML/default/logistic_toc.htm" target="_blank">http://support.sas.com/documentation/cdl/en/statug/63033/HTML/default/logistic_toc.htm</A> Thu, 15 Jul 2010 20:48:26 GMT https://communities.sas.com/t5/Statistical-Procedures/How-to-output-the-standard-error-of-prediction-in-PROC-logistic/m-p/20688#M608 StatDave 2010-07-15T20:48:26Z