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Table 2 Summary of physical features and diagnostic symptom profile for the CFS/ME cohort investigated for cytokine and activin/follistatin variation

From: Activin B is a novel biomarker for chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) diagnosis: a cross sectional study

Measurement

Median (range)

CFS/ME cohort

Healthy control cohort

Height (cm)

165.0 (122–188)

171.5 (153–187)

Weight (kg)

60.0 (52–124)

66.0 (51–98)

BMI

22.2 (18.9–47.2)

21.9 (19.6–32.1)

Blood pressure

 Systolic (mmHg)

120.0 (102–168)

121.5 (107–140)

 Diastolic (mmHg)

80.0 (65–104)

74.0 (55–90)

 Pulse rate (bpm)

72.0 (51–102)

60.0 (43–89)

Epworth sleep scale

6.0 (0–20)

4.0 (0–15)

Canadian criteria symptoms (percentage)

CFS/ME cohort

Reported by 100% of study participants

Fatigue ≥6 months

Post-exertional fatigue

Activity limited

Stress with activity

Unrefreshing sleep

Reduced concentration

Impaired thinking + speech

Orthostatic intolerance

Vertigo

Food intolerance

Reported by ~50% of study participants

Gut axis (constipation, indigestion, diarrhoea)

Sleep (difficulty to wake, sleeping during day)

New allergies

Sighing breaths

Arrhythmia

Confusion

Smell sensitivity

Reported by ≤10% of study participants

Migraine headache

Sensitivity to touch

High heart rate upright

Pain frequency

  1. Epworth sleep scale: 0–10 (normal daytime sleepiness): 11–15 (excessive daytime sleepiness): 16–24 (severe daytime sleepiness)
  2. Height was significantly greater for the healthy control cohort (p = 0.002, Mann–Whitney U). Diastolic blood pressure and pulse rate were significantly elevated for CFS/ME (p < 0.05, Mann–Whitney U). CFS/ME (n = 40 to 43); Healthy Controls (n = 7 to 17)
  3. BMI body mass index, bpm beats per minute