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RCVS2 score performance

RCVS2 score performance
RCVS2 score Specificity Sensitivity PPV NPV
Derivation cohort
Score 5 or higher* 99 (93, 100) 90 (73, 98) 96 (82, 100) 96 (90, 99)
Score 3 or 4* 86 (77, 93) 10 (2, 27) 21 (5, 51) 72 (62, 80)
Score 2 or lower 100 (88, 100) 85 (75, 92) 100 (95, 100) 71 (55, 84)
Validation cohort
Score 5 or higher* 94 (82, 99) 86 (80, 91) 98 (94, 100) 67 (54, 78)
Score 3 or 4* 83 (69, 92) 11 (6, 17) 68 (46, 85) 22 (16, 28)
Score 2 or lower 96 (92, 99) 77 (62, 88) 86 (71, 95) 93 (88, 97)
NPV: negative predictive value; PPV: positive predictive value; RCVS: reversible cerebral vasoconstriction syndrome.
* Values for a RCVS diagnosis.
¶ Values for a non-RCVS diagnosis.
From: Rocha EA, Topcuoglu MA, Silva GS, Singhal AB. RCVS2 score and diagnostic approach for reversible cerebral vasoconstriction syndrome. Neurology 2019; 92:e639. DOI: 10.1212/WNL.0000000000006917. Copyright © 2019 American Academy of Neurology. Reproduced with permission from Wolters Kluwer Health. Unauthorized reproduction of this material is prohibited.
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