TABLE II.

Optimal Cut Points and Performance Metrics for Each Risk Score in Predicting POAF

Risk score	Cut point, ≥	Sensitivity	Specificity	Positive predictive value	Negative predictive value
POAF	3	0.56	0.67	0.78	0.42
HATCH	2	0.47	0.64	0.74	0.37
COM-AF	4	0.63	0.47	0.72	0.38
CHA2DS2-VASc	3	0.44	0.66	0.73	0.36
STS	1.74a	0.63	0.51	0.73	0.40

CHA₂DS₂-VASc, congestive heart failure, hypertension, age ≥75 years, diabetes, stroke or transient ischemic attack, vascular disease, age 65-74 years, sex category; POAF, postoperative atrial fibrillation; STS, Society of Thoracic Surgeons.

^aSTS score presented as a percentage, not an integer.