/* Paired t-test to compare means */ proc ttest data=bp_data; paired bp_before* bp_after; where treatment = 1; /* Optional: to analyze only those with treatment */ run;
/* Create a sample dataset */ data bp_data; input patient_id treatment bp_before bp_after; datalines; 1 0 120 130 2 1 140 110 3 0 110 125 4 1 130 105 ; run; Statistical Analysis of Medical Data Using SAS.pdf
Statistical methods in diagnostic medicine using SAS software /* Paired t-test to compare means */ proc