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Table 2 Participant characteristics

From: Circulating levels of GDF15 in patients with myalgic encephalomyelitis/chronic fatigue syndrome

All groups

Variable

Mean (95% CI) or number (percentage)

Healthy control (n = 150)

Multiple sclerosis (n = 50)

ME/CFS (n = 150)

Age (years)**

42 (39.7–44.3)

49.4 (43.3–51.4)

41.6 (39.8–43.5)

BMI (Kg/m2)

25.9 (24.9–26.8)

25.5 (24.3–26.8)

25.4 (24.6–26.3)

eGFR (ml/min/1.73 m2)

82.6 (80.7–84.6)

80.6 (77.9–83.3)

82.5 (80.9–84.2)

C-reactive protein(mg/l)

3.5(2.1–5.0)

2.4(1.8–2.9)

2.8(2.2–3.4)

Female sex

65 (65%)

38 (76%)

112 (74.6%)

Current smoking**

4 (4%)

13 (26%)

11 (7.5%)

ME/CFS cases

Variable

Mean (95% CI) or number (percentage)

Non-severe cases (n = 100)

Severe cases (n = 50)

Age (years)

41.2 (38.9–43.4)

42.6 (39.4–45.7)

BMI (Kg/m2)*

26.2 (25.2–27.3)

23.7 (22.4–25.0)

eGFR (ml/min/1.73 m2)*

80.5 (78.3–86.2)

86.7 (84.7–88.6)

C-reactive protein(mg/l)

3.1(2.4–3.8)

2.2(1.4–3.1)

Female sex

74 (74%)

38 (76%)

Current smoking

10 (10.3%)

1 (2%)

  1. *P < 0.01; **P < 0.001