. Author manuscript; available in PMC: 2011 May 1.

Published in final edited form as: Cancer Causes Control. 2010 Jan 19;21(5):719–727. doi: 10.1007/s10552-009-9500-2

Table 2.

Spearman partial correlation coefficients between hormone levels (log-scale) and maternal characteristics at enrollment in 338 uncomplicated pregnancies from the Northern Sweden Maternity Cohort, 1975–2001^&

Characteristics	IGF-I	IGF-II	AFP	hCG
Gestational day	−0.02	0.12 ^*	0.60 ^**	− 0.34 ^**
Maternal age (years)	− 0.12 ^*	− 0.33 ^**	−0.03	−0.09
Maternal weight (kg)	0.06	0.01	−0.04	− 0.12 ^*
Maternal height (cm)	0.04	−0.01	0.00	−0.01
IGF-I (nmol/L)
IGF-II (nmol/L)	0.47 ^**
AFP (μg/L)	0.14 ^*	0.23 ^**
hCG (mlU/mL)	0.07	0.16 ^*	0.00

p < 0.05

^**

p < 0.001

partial correlations for IGF-I, IGF-II, and AFP were adjusted for a linear term of gestational day; for hCG for a cubic term of gestational day.