Table 1.

Stratifications for patients who experienced Cardiac Arrest following Total Joint Arthroplasty

Total Knee Arthroplasty (TKA)		Total Hip Arthroplasty (THA)
Risk Factor	Ranges	Risk Factor	Ranges
Age	18-60, 60–67, 67–73, or 73+	Age	18-57, 57–65, 65–72, or 72+
BMI	<18.5, 18.5–24.9, 24.9–29.9, or 29.9+	BMI	<18.5, 18.5–24.9, 24.9–29.9, or 29.9+
Admission Quarter	1, 2, 3, or 4	Admission Quarter	1, 2, 3, or 4

Stratification for Age, BMI (Body Mass Index), Admission quarter, and Operative time for association with cardiac arrest following THA and TKA.