Predicting Postoperative Troponin in Patients Undergoing Elective Hip or Knee Arthroplasty: A Comparison of Five Cardiac Risk Prediction Tools

Table 3

Spearman correlations (r_s) of score vs. POD2 hs-cTnI.

Risk score	Correlations vs. POD2 hs-cTnI		Correlations vs. Δ hs-cTnI
	rs	value	rs	value
ASCVD	0.24	<0.001	0.13	<0.001
Framingham score	0.20	<0.001	0.06	0.07
ACS-NSQIP	0.11	<0.001	0.01	0.83
RCRI	0.11	0.006	0.06	0.07
R-RCRI	0.08	0.025	0.05	0.15
Baseline hs-cTnI	0.51	0.001	–0.02	0.54

ACS-NSQIP, American College of Surgeon’s National Surgical Quality Improvement Program; ASCVD, atherosclerotic cardiovascular disease calculator; Δ hs-cTnI, change in high-sensitivity cardiac troponin I; POD2, postoperative day 2; RCRI, the revised cardiac risk index; R-RCRI, the reconstructed RCRI.