Table 2. Serum and Urine Nephrin Levels Throughout Pregnancy and at Postpartum.

	Serum nephrin (ng/mL)	p value*	Urine nephrin (ng/mL)	p value*
<15 wks	99.29±5.29	REF	0.13±0.02	REF
16–20 wks	92.85±5.35	0.08	0.17±0.02	0.11
21–28 wks	78.56±4.68	<0.001	0.24±0.03	<0.05
29–40 wks	68.69±3.63	<0.001	0.26±0.03	<0.001
Postpartum	99.77±5.43	0.62	0.11±0.01	0.39

REF, reference value.

Values expressed as least square mean±SE.

^*p-value by Linear mixed model.