Page Comparison

/*
 * In order to add as little overhead as possible, allowing rules to be run relatively efficiently on very large
 * cohorts, the rule framework does not automatically provide us with a Patient object, but just a patientId.
 * This line fetches that Patient object. (It actually fetches all patients in the cohort the rule is being evaluated
 * on.)
 */
def patient = context.getPatient(patientId)

/*
 * We want this rule to work correctly if you evaluate it as-of some other date. So we fetch the index date from
 * the LogicContext. "context.indexDate" is groovy shorthand for "context.getIndexDate()"
 */
def age = patient.getAge(context.indexDate)

/*
 * We need to wrap our returned value in a logic Result.
 */
return new Result(age)