Methods
Patients that are ≥70 years old who underwent CABG were selected from
the Nationwide/National Inpatient Sample from 2010 to 2015 using
ICD-9-CM diagnosis and procedure codes. The patients who were 70–79
years old were compared to patients aged 80–89 years old to determine
if the age difference of the patients had an impact on surgical
outcomes. In addition, the gender of the patients 80-89 years old were
compared. The rates of postoperative complications, and mortality were
compared.