Maternal History and Uterine Artery Doppler in the Assessment of Risk for Development of Early- and Late-Onset Preeclampsia and Intrauterine Growth Restriction

Table 3

Screening characteristics for mean PI > 1.40 irrespective of bilateral Notches at 20 w (screen positive rate: 10%).

	S (%)	E (%)	PPV (%)	NPV (%)	LR+	LR−
PE	46.0	90.0	5.2	99.3	4.7	0.21
PE < 32 w	70.6	90.0	2.0	99.9	7.4	0.14
PE ≥ 32 w	39.2	90.0	3.3	99.4	3.9	0.20
IUGR	57.1	90.3	5.9	99.5	6.0	0.17
IUGR < 32 w	73.3	90.1	3.6	99.9	7.4	0.13
IUGR ≥ 32 w	42.4	90.0	3.3	99.4	3.9	0.25
PE and/or IUGR < 32	71.4	90.0	4.1	99.8	7.3	0.14
PE and IUGR	68.4	90.0	2.1	99.9	6.8	0.15
PE and IUGR < 32 s	75.0	89.9	1.5	99.9	7.5	0.13
PE and IUGR ≥ 32 s	57.1	89.9	0.7	99.9	5.6	0.18