Table 1. Electronic health record (EHR) data collected from each patient prior to 1^st statin fill.

Data type	Data collection period relative to 1st statin filll	Description	Comments
Demographic	n/a	Sex, age, ethnicity, race, marital status, and pharmacy coverage program smoking
Coding	1 year	Health Care Common Procedure Coding System (HCPCS) and International Classification of Disease (ICD) codes for inpatient admitting diagnosis, up to 10 additional diagnoses, and up to 20 procedures codes per encounter	Gathered from inpatient and outpatient encounters from direct and purchased care.
Laboratory	2 years	LDL cholesterol, creatinine, creatinine kinase, HDL cholesterol, total cholesterol and triglycerides	Most recent prior to initial fill defined as baseline
Prescription	1 year	NDC code, quantity filled, product strength, and days’ supply	Gathered for statins and concomitant medications