Gender (%male)
|
84 (28%)
|
6 (11%)
|
0.35 (0.14–0.87)
|
0.02
|
0.57 (0.18–1.82)
|
0.34
|
Age (years)
|
44 (21–61)
|
41 (23–61)
|
0.97 (0.94–1.00)
|
0.07
| | |
Body mass index (kg/m2)
|
42 (33–62)
|
42 (36–53)
|
0.98 (0.92–1.06)
|
0.64
| | |
Ethnicity (% Caucasian)
|
281/296 (95%)
|
53/54 (98%)
|
1.34 (0.17–10.82)
|
0.51
| | |
Smoking
|
68/291 (23%)
|
12/52 (23%)
|
1.24 (0.60–2.59)
|
0.56
| | |
Diabetes mellitus
|
72/296 (24%)
|
7/54 (13%)
|
0.51 (0.22–1.20)
|
0.12
| | |
Hypothyroidism
|
29/296 (10%)
|
7/53 (13%)
|
1.27 (0.51–3.16)
|
0.61
| | |
Fibromyalgia
|
33/295 (11%)
|
12/54 (22%)
|
1.86 (0.86–4.00)
|
0.12
| | |
Self-reported psychiatric disorder
|
47/296 (16%)
|
18/54 (33%)
|
2.61 (1.33–5.13)
|
0.005
|
2.39 (1.12–5.08)
|
0.02
|
Hemoglobin (g/dl)
|
14.3 (1.1)
|
14.0 (1.1)
|
0.65 (0.49–0.88)
|
0.004
|
0.68 (0.45–1.02)
|
0.07
|
White-cell count (×109/l)
|
7.5 (2.8–16.1)
|
7.3 (2.4–11.3)
|
0.85 (0.72–1.00)
|
0.05
| | |
Platelet count (×109/l)
|
275 (112–519)
|
294 (131–939)
|
1.00 (1.00–1.01)
|
0.14
| | |
C-reactive protein (mg/l)
|
6 (0–50)
|
5 (1–23)
|
0.97 (0.92–1.03)
|
0.33
| | |
Cholesterol (mmol/l)
|
4.9 (1.0)
|
5.4 (0.8)
|
1.73 (1.23–2.43)
|
0.002
| | |
High-density lipoprotein (mmol/l)
|
1.1 (0.4–2.2)
|
1.1 (0.7–2.0)
|
1.02 (0.39–2.67)
|
0.97
| | |
Low-density lipoprotein (mmol/l)
|
3.1 (0.9)
|
3.6 (0.7)
|
1.85 (1.27–2.70)
|
0.001
|
2.10 (1.34–3.29)
|
0.001
|
Thyroid stimulating hormone (mIE/l)
|
1.5 (0.0–7.9)
|
1.7 (0.2–14.6)
| |
0.02
| |
0.08
|
Free T4 (pmol/l)
|
15 (10–28)
|
15 (11–23)
|
0.97 (0.85–1.10)
|
0.17
| | |
Vitamin B1 (nmol/l)
|
155 (62–239)
|
142 (91–246)
|
0.98 (0.97–1.00)
|
0.008
|
0.99 (0.98–1.01)
|
0.21
|
Vitamin B6 (nmol/l)
|
26 (5–231)
|
26 (6–113)
|
0.99 (0.98–1.01)
|
0.36
| | |
Vitamin B12 (pmol/l)
|
346 (158–1480)
|
342 (173–712)
|
1.00 (1.00–1.00)
|
0.52
| | |
Folic acid (nmol/l)
|
18 (6–46)
|
16 (7–46)
|
0.98 (0.94–1.02)
|
0.28
| | |
Use of statins
|
52/295 (18%)
|
2/54 (4%)
|
0.18 (0.04–0.78)
|
0.02
|
0.31 (0.07–1.47)
|
0.14
|
Use of thyroid substitution therapy
|
26/296 (9%)
|
6/54 (11%)
|
1.30 (0.49–3.46)
|
0.60
| | |
Center
| | | | |
5.22 (2.48–10.99)
|
<0.001
|