Balance of variables for patients on PPIs in the STRIDE dataset.

PPI exposure and control groups for patients with gastroesophageal reflux disease (GERD) are balanced across a number of basic covariates. Importantly, the use of clopidogrel is equally balanced across exposed and control groups. Other variables (no. of unique disease mentions, no. unique drug mentions, length of observation) are binned according to their distributions. Before matching, PI patients tend to be sicker, have more diseases and more drugs mentioned in their record. After matching, these variables are balanced.
Balance of variables for patients on PPIs in the STRIDE dataset.