Table 2. Means of total and atypical depression scores, C-reactive protein, Interleukin-6, Tryptophan, Kynurenine, and Kynurenine/Tryptophan ratio (n =27).

		Mean	SD
Total Depression Scores	Prenatal	11.4*	6.9
	Early Postpartum	9.3	6.6
	Late Postpartum	7.9	4.6
Atypical Depression Scores	Prenatal	4.9*	3.3
	Early Postpartum	3.5	2.7
	Late Postpartum	3.5	3.1
C-Reactive Protein (μg/L)	Prenatal	20	15.3
	Early Postpartum	41.2**	20.4
	Late Postpartum	15.5	18.6
Interleukin 6 (pg/mL)	Prenatal	10.2	7.4
	Early Postpartum	60.4**	77.3
	Late Postpartum	11.9	10.1
Kynurenine/ Tryptophan ratio μmol/mmol	Prenatal	32.8	7.3
	Early Postpartum	34.2	11.3
	Late Postpartum	34.8	8.6
Tryptophan (μmol/L)	Prenatal	44.9	9.5
	Early Postpartum	44.2	7.8
	Late Postpartum	50.0#	7.0
Kynurenine (μmol/L)	Prepartum	1.4	0.4
	Early Postpartum	1.4	0.3
	Late Postpartum	1.7#	0.5

^*significantly higher than postpartum values, p<0.06.

^**significantly higher than pre- and late postpartum values, p<0.001.

^#significantly higher than pre- and early postpartum values, p<0.005.

Comparisons of means from mixed model analyses, adjusting for repeated measures on participants.