Table 7.

Sensitivity, specificity, positive and negative predictive values of Informant Based Screening (IBS).

(Stage 1: IQCODE≥3.2) (Stage 2: pFCSRT+IR free recall ≤25 or total recall ≤46)

IBS	Sensitivity	Specificity	PPV	NPV
Overall	77 (65,87)	92 (87,95)	76 (64,86)	92 (87,95)
≤8 education years	79 (59,92)	93 (84,97)	79 (59,92)	93 (84,97)
>8 education years	76 (59,88)	92 (84,96)	76 (59,88)	92 (84,96)
Latino	85 (69,94)	93 (86,97)	80 (65,91)	94 (88,98)
Non-Latino Blacks	65 (38,86)	92 (82,97)	69 (41,89)	90 (80,96)

IQCODE: Informant Questionnaire on Cognitive Decline in the Elderly

pFCSRT+iR: picture version of the Free and Cued Selective Reminding Test with Immediate Recall

PPV: positive predictive value

NPV: negative predictive value