Vanderbilt Implementation of CHD

Keep in mind the specificity is dependent on when the search was performed—For example our search was run at the end of August if the patient presents to clinic with a new diagnosis of CHD which occurred after the search was conducted then they are disease positive and missed by our search strategy.  The performance of the search will decrease slightly the further away from the search date—Therefore we have chosen to have the search repeated every 3-4 months.