. Author manuscript; available in PMC: 2017 Aug 1.

Published in final edited form as: Brain Behav Immun. 2016 Feb 23;56:165–174. doi: 10.1016/j.bbi.2016.02.018

Table 2.

Circulating Levels of Immune System Cytokines

Cytokine	Overall Detectability^a	Overall Mean (SD)^a, pg/mL	Person-Specific Mean (SD)^b, pg/mL	25^th, 75^th percentile Person-Centered^c, pg/mL
IL-1β	77%	NI^d	NI^d	NI^d
IL-2	75%	NI^d	NI^d	NI^d
IL-6	98%	3.4 (2.8)	2.5 (2.0)	−0.2, 0.3
IL-8	100%	6.6 (9.8)	5.1 (1.7)	−0.2, 0.2
IL-10	90%	1.2 (2.7)	0.5 (2.7)	−0.2, 0.3
TNF-α	100%	8.5 (3.6)	7.9 (1.4)	−0.1, 0.1
IFN-γ	47%	NI^d	NI^d	NI^d

Overall percent of samples with detectable levels of cytokine, and mean (standard deviation) cytokine levels from all women with cytokine data across all time points (n = 97, total samples = 710)

Mean (standard deviation) cytokine levels from all women with cytokine data averaged over (up to) 9 time points for each woman

Within each woman, person-centered values for each cytokine were calculated by subtracting her mean cytokine values (averaged across all her time points) from each of her corresponding cytokine observations; 25^th and 75^th percentiles of person-centered cytokine values are shown for all women with cytokine data

NI = not included in analyses due to low detectability