Table 2. Adjusted coefficients with standard errors (SE) from multiple linear regression analysis of the association between infant birth weight and maternal glomerular filtration rate (GFR) in second-trimester estimated by Cockroft-Gault (CG), modification of diet in renal disease (MDRD) and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) formulas, based on data from 470 women with preeclampsia, 483 women without preeclampsia and the total cohort of 953 pregnant women from the Norwegian Mother and Child Cohort, Norway 2003–2007.

	Women with preeclampsia	Women without preeclampsia	The total cohort
	Adjusted βa	Adjusted βa	Adjusted βb
	(SE)	(SE)	(SE)
GFR by CG formula	1.1* (0.49)	0.24 (0.52)	0.73* (0.36)
GFR by MDRD formula	1.3* (0.58)	0.23 (0.58)	0.83* (0.41)
GFR by CKD-EPI formula	3.0* (1.3)	1.3 (1.1)	0.04 (0.82)

*significance at the 0.05 level.

^aadjusted for maternal weight (kg) and gestational age in days. The unit for β with SE in gram.

^badjusted for maternal weight (kg), preeclampsia and gestational age in days. The unit for β with SE in gram.