Table 2.

Descriptive Statistics of Cytokines

(pg/mL)	Mean	SD	Range	Expected for CFS/ME Women*	Expected for Female Controls*
IL-1β	31.91	42.09	4.30–152.55	13.4 (4.5–38.3)	6.2 (4.2–38.3)
IL-6	8.79	8.71	0.20–32.31	6.4 (3.8–14.4)	3.2 (2.1–5.9)
TNF-α	18.51	19.88	0.50–71.75	7.3 (3.4–22.6)	6.4 (4.5–38.3)

^*Expressed as 25^th and 75^th percentiles (Fletcher, Zeng, 2009)