Table 2.

Means and standard deviations of salivary cortisol, perceived stress, and maternal mood levels during pregnancy, by group condition.

	CBSM n = 24	UC n = 33	LRC n = 29
	M (SD)	M (SD)	M (SD)
Prepartum salivary cortisol
Cortisol (log scores)
Morning cortisol	0.89 (± 0.26)**	1.02 (± 0.22)	1.11 (± 0.23)
Evening cortisol	0.35 (± 0.26)*	0.48 (± 0.47)	0.62 (± 0.40)
Average cortisol	0.62 (± 0.22)**	0.75 (± 0.27)	0.87 (± 0.24)
Cortisol slope	0.55 (± 0.29)	0.53 (± 0.51)	0.49 (± 0.44)
Collection time [hour:minutes (minutes)]
Morning cortisol collection time	9:02 (± 1:17)*	8:11 (± 1:06)	8:47 (± 0:54)
Evening cortisol collection time	8:08 (± 0:29)	8:07 (± 0:21)	8:11 (± 0:22)
Prepartum stress and mood measures
Stress rating
Morning stress rating	23.0 (± 24.9)	29.5 (± 22.8)	23.9 (± 22.7)
Evening stress rating	30.5 (± 24.0)	32.0 (± 21.8)	21.4 (± 17.5)
Average stress rating	26.3 (± 19.8)	30.6 (± 20.1)	23.4 (± 19.6)
Depression measures
Past History of Major Depression (%)	33.3	66.7	0.0***
CES-D	20.6 (± 7.9)	23.7 (± 12.3)	9.4 (± 3.6)***
Affect
Positive affect	2.5 (± 0.8)	2.4 (± 0.9)	3.0 (± 1.0)
Negative affect	1.6 (± 0.5)	1.6 (± 0.6)	1.5 (± 0.5)

Note. Pearson’s χ² and ANOVAs were conducted to examine for between group differences among categorical and continuous variables, respectively.

^*p < .05;

^**p < .01;

^***p < .001