Y' if subject had returned for at least one post-baseline efficacy assessment: FA.FAORRES is non-missing at anyone of post-baseline visits (Week 4, Week 8, Week 12) for FAOBJ - "Total Inflammatory Lesion Count" or FAOBJ - "Total Non-Inflammatory Lesion Count" or ZA.ZAORRES not missing where ZA.ZATESTCD is "IGA"; "N" if subject had either post-baseline visits but there were no lesion count data; Null for Screen Failures . how to derived flag.? data fa; length visit FAOBJ $200 ; infile datalines dsd truncover; input subjid $ visit $ visitnum FAOBJ$; datalines; 0076,V1 Day 1_Baseline, 1, Total Inflammatory Lesion Count 0076,V2 Day 28, 3, Total Inflammatory Lesion Count 0076,V3 Day 56, 4, Total Inflammatory Lesion Count 0076,V4 Day 84_EOT_ET, 5, Total Inflammatory Lesion Count 0076,V4 Day 84_EOT_ET, 5 ,Total Non-Inflammatory Lesion Count 0092,V1 Day 1_Baseline,1,Total Inflammatory Lesion Count 0092,V1 Day 1_Baseline,1,Total Non-Inflammatory Lesion Count 0998,V1 Day 1_Baseline,1,Total Inflammatory Lesion Count 0998,V1 Day 1_Baseline,1,Total Non-Inflammatory Lesion Count 0998,V1 Day 1_Baseline,1,Total Inflammatory Lesion Count 0998,V1 Day 1_Baseline,1,Total Non-Inflammatory Lesion Count 0998,V1 Day 1_Baseline,1,Total Inflammatory Lesion Count 0998,V1 Day 1_Baseline,1,Total Non-Inflammatory Lesion Count 0297,V2 Day 28,3,Total Inflammatory Lesion Count 0297,V2 Day 28,3,Total Non-Inflammatory Lesion Count 0297,V3 Day 56,4,Total Inflammatory Lesion Count 0297,V3 Day 56,4,Total Non-Inflammatory Lesion Count 0297,V3 Day 56,4,Total Inflammatory Lesion Count 0297,V4 Day 84_EOT_ET,5,Total Non-Inflammatory Lesion Count 0490,V1 Day 1_Baseline,1,Total Inflammatory Lesion Count 0490,V1 Day 1_Baseline,1,Total Non-Inflammatory Lesion Count 0490,V2 Day 28,3,Total Inflammatory Lesion Count 0490,V2 Day 28,3,Total Non-Inflammatory Lesion Count ; run; data za; length visit FAOBJ $200 ; infile datalines dsd truncover; input subjid $ visit $ visitnum TESTCD$; datalines; 0076,V1 Day 1_Baseline, 1,IGA 0076,V2 Day 28, 3,IGA 0076,V3 Day 56, 4,IGA 0076,V4 Day 84_EOT_ET, 5, IGA 0076,V4 Day 84_EOT_ET, 5 ,IGA 0092,V1 Day 1_Baseline,1,IGA 0998,V1 Day 1_Baseline,1,IGA 0998,V1 Day 1_Baseline,1,IGA 0297,V1 Day 1_Baseline,1,IGA 0297,V2 Day 28,3,IGA 0297,V3 Day 56,4,IGA 0297,V4 Day 84_EOT_ET,5,IGA 0490,V1 Day 1_Baseline,1,IGA 0490,V2 Day 28,3,IGA ; RUN;
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