Egyptian Rheumatology and Rehabilitation

Table 6 Validity of albumin, fibrinogen, FAR, ESR, and CRP for the prediction of activity

From: Serum fibrinogen to albumin ratio in patients with ankylosing spondylitis: correlation with disease activity and severity

	Albumin	Fibrinogen	FAR	ESR	CRP
AUC	0.793	0.917	0.985	0.813	0.897
Cutoff	< 3.8	354	93.2	26.5	18.4
Sensitivity (%)	95	85	90	90	85
Specificity (%)	60	90	100	60	90
PPV (%)	95	85	90	90	85
NPV (%)	60	90	100	60	90
Accuracy (%)	83.3	86.7	93.3	80	86.7

AUC Area under the ROC curve, PPV Positive predictive value, NPV Negative predictive value

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