For every exposure-outcome-analysis combination, create a characterization using FeatureExtraction. Probably best to upload the study population (to be created in #15 ) from R to server to make sure it's the same group of people. Index date = start of (first) drug exposure, but truncated by study time.
For every exposure-outcome-analysis combination, create a characterization using FeatureExtraction. Probably best to upload the study population (to be created in #15 ) from R to server to make sure it's the same group of people. Index date = start of (first) drug exposure, but truncated by study time.