Table 2.

The relationship of different levels of β-hCG and PAPP-A with adverse pregnancy outcomes

Conceptional outcomes	PAPP-A				β-hCG
	≥ 2.46 (n = 50)	0.35–2.45 (n = 893)	≤ 0.34 (n = 51)	p value	≥ 2.5 (n = 50)	0.35–2.49 (n = 892)	≤ 0.34 (n = 52)	p value
Preeclampsia
Yes (n = 73)	2 (2.7%)	54 (74.0%)	17 (23.3%)	< 0.001	5 (6.8%)	64 (87.7%)	4 (5.5%)	0.755
No (n = 921)	48 (5.2%)	839 (91.1%)	34 (3.7%)		45 (4.88%)	828 (89.9%)	48 (5.21%)
Preterm labor
Yes (n = 77)	4 (5.2%)	62 (80.5%)	11 (14.3%)	0.003	4 (5.19%)	65 (85.71%)	8 (10.38%)	0.001
No (n = 899)	45 (5%)	816 (90.8%)	38 (4.2%)		44 (4.9%)	815 (90.7%)	40 (4.4%)
Abortion
Yes (n = 18)	1 (5.5%)	15 (83.3%)	2 (11.1%)	0.446	2 (11.1%)	12 (66.7%)	4 (22.2%)	0.001
No (n = 976)	49 (5.02%)	878 (89.86%)	49 (5.02%)		48 (4.9%)	880 (90.2%)	48 (4.9%)
Low birth weight
Yes (n = 60)	4 (6.7%)	46 (76.7%)	10 (16.7%)	< 0.001	5 (8.33%)	54 (90%)	1 (1.66%)	0.23
No (n = 915)	45 (4.9%)	831 (90.8%)	39 (4.3%)		43 (4.7%)	825 (90.2%)	47 (5.1%)