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Table 2 Number of unique conditions and medications retained at each step of our statistical procedure for our hypertension case study

From: Monitoring prescribing patterns using regression and electronic health records

  # unique conditions in dataset # unique conditions recorded for fewer than 20 patients # unique medications in dataset # unique medications recorded for fewer than 20 patients
After step 1 (creation of dataset with 1 visit per patient) 7601 5838 2321 1464
After step 2 (association screening) 1844 598 782 155
After step 3 (LASSO) 396 75 275 36