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Table 3 Serum hormones in patients and control group according to score on the Beck Depression Inventory (BDI)a

From: Cortisol and hypothalamic–pituitary–gonadal axis hormones in follicular-phase women with fibromyalgia and chronic fatigue syndrome and effect of depressive symptoms on these hormones

  Patients with fibromyalgia Patients with CFS Healthy controls
  BDI < 17 (N = 32) BDI ≥ 17 (N = 36) BDI < 17 (N = 21) BDI ≥ 17 (N = 41) (N = 46)
Age (years) 31.86 ± 7.29 30.65 ± 7.65 31.98 ± 6.57 32.76 ± 7.18 31.54 ± 6.86
LH 11.65 ± 10.42* & # 6.43 ± 4.28 6.21 ± 7.26 6.71 ± 5.87 6.88 ± 4.69
FSH 7.13 ± 3.21 6.25 ± 2.84 5.87 ± 3.69 6.81 ± 4.43 6.69 ± 4.87
Progesterone 4.19 ± 4.56 4.73 ± 5.56 4.18 ± 4.65 3.72 ± 5.27 3.78 ± 3.97
Estradiol 113.48 ± 69.45 121.42 ± 90.26 98.39 ± 87.11 107.23 ± 91.57 94.15 ± 59.34
Prolactin 26.08 ± 32.19 21.03 ± 11.32 23.41 ± 28.49 20.87 ± 27.36 19.35 ± 10.45
Cortisol 11.94 ± 6.56# 10.11 ± 5.67* 8.96 ± 4.28* 10.52 ± 5.45* 13.52 ± 6.25
  1. Values are means ± standard deviation. aA BDI score of ≥ 17 was considered to indicate depression. *Significantly different from control (P < 0.05); &significantly different from fibromyalgia group with BDI ≥ 17 (P < 0.05); #significantly different from CFS group with BDI < 17 (P < 0.05). CFS, chronic fatigue syndrome; FSH, follicle-stimulating hormone; LH, luteinizing hormone.