. Author manuscript; available in PMC: 2014 Sep 1.

Published in final edited form as: Psychoneuroendocrinology. 2013 Feb 22;38(9):1630–1638. doi: 10.1016/j.psyneuen.2013.01.008

Table 1.

Descriptive information for Adolescents in the Cortisol Sub-study (with at least 1 full day of cortisol data, n=889)

	Sub-study participants	ALSPAC cohort	F(df),	p

Maternal age	28.52 (4.38)	27.10 (4.99)	65.05_{(1, 13038),}	<0.001
SES	2.76 (1.04)	2.95 (1.60)	9.01_{(1, 9397),}	<0.02
Prenatal smoking	0.83 (3.24)	1.96 (5.00)	42.92_{(1, 12224),}	<0.001
Prenatal alcohol use	2.09 (4.34)	1.69 (3.74)	3.94_{(1, 6383),}	<0.05
Birth weight(g)	3464 (490)	3429 (507)	5.81_{(1, 13038),}	<0.05
Gestational age(wks)	39.60 (1.62)	39.57 (1.58)	0.53_{(1, 13038),}	ns
Maternal anxiety
32 wks gestation	4.55 (3.47)	5.15 (3.60)	22.61_{(1, 10955),}	<0.001
8 wks postnatal	3.17 (3.04)	3.42 (3.34)	5.44_{(1, 10805),}	<0.05
Percent female	56%	48%	13.72_{(1, 9875),}	<0.001
Cortisol	values (nmoL/l)	Time

Waking	7.19 (4.12)	7:03am
Waking + 30’	11.54 (6.04)	7:41am
Afternoon	2.32 (1.98)	4:43pm
Evening	1.12 (1.55)	9:45pm

Note: N’s vary across measure because of missing data. Average cortisol values and times are for day 1.