Research on Burden of Disease for Patients With Myocardial Infarction Combining Dyslipidemia in China

Inclusion Criteria:

• Patients were hospitalized because of acute myocardial infarction in a study hospitalbetween January 1, 2016 and December 31, 2016. If a patient was hospitalized becauseof multiple occurrences of myocardial infarction during this period, his/her initialhospitalization because of myocardial infarction will be considered indexhospitalization. Patients undergo continuous screening in a reverse order based ontime.

• Patients did not die during "index hospitalization".

• Patients had Low-density lipoprotein≥1.8 mmol/L shown by the first measurement ofblood lipids or were using lipid-regulating drugs at the first measurement of bloodlipids during "index hospitalization" in 2016.

• Patients consent to participate in this study and grant informed consent; or thefamily of a patient who died before telephone screening consents to provide relevantinformation and grant informed consent.

Exclusion Criteria:

• Patients participated in interventional clinical trials after "index hospitalization".

• Patients had paid <5 visits to the outpatient clinics of a study hospital within oneyear since discharge after "index hospitalization" (if patients who have died withinone year since discharge after "index hospitalization").

• There is a barrier to communication with a patient or his/her family (if the patienthas died); a patient or his/her family (if the patient has died) cannot correctlyunderstand and answer questions normally.