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Table 1 Clinical and life-style characteristics of the study population in subjects with and without the MetS

From: Erythropoietin, ferritin, haptoglobin, hemoglobin and transferrin receptor in metabolic syndrome: a case control study

Characteristics Male p Female p
MetS present MetS not present MetS present MetS not present
N = 159 N = 182   N = 170 N = 255  
Age, years ** 53.7 (5.8) 50.7 (6.2) <0.001 54.4 (5.7) 50.5 (6.4) <0.001
Body mass index ** 29.8 (3.9) 25.2 (2.5) <0.001 30.8 (5.3) 25.1 (3.5) <0.001
Waist, cm ** 103.8 (10.7) 89.6 (7.2) <0.001 96.2 (12.4) 81.0 (8.5) <0.001
FP-gluc mmol/L ** 6.5 (1.4) 5.8 (0.8) <0.001 6.3 (1.5) 5.5 (0.4) <0.001
BP systolic, mmHg ** 143 (19) 136 (17) <0.001 144 (17) 131 (16) <0.001
BP diastolic, mmHg ** 87 (9) 82 (10) <0.001 86 (9) 79 (8) <0.001
HDL-C, mmol/L ** 1.3 (0.4) 1.6 (0.4) <0.001 1.6 (0.4) 1.8 (0.3) <0.001
Trigly, mmol/L ** 1.9 (1.5) 1.1 (0.5) <0.001 1.6 (0.8) 1.0 (0.3) <0.001
Creatinine μmol/L ** 88.5 (11.9) 85.9 (8.7) 0.02 75.3 (14.8) 73.8 (8.9) 0.17
Hemoglobin (g/L) ** 154 (9) 150 (9) <0.001* 141 (10) 136 (9) <0.001*
Ferritin (μg/L) ** 216 (165) 151 (112) <0.001* 94 (75) 61 (48) <0.001*
TFR (mg/L) ** 2.9 (2.8) 2.6 (0.6) 0.12* 2.8 (0.9) 2.7 (1.0) 0.32*
Haptoglobin (g/L) ** 1.3 (0.6) 1.1 (0.5) 0.012* 1.4 (0.6) 1.2 (0.4) <0.001*
Hs-CRP (mg/L) ** 2.4 (3.5) 1.5 (2.9) 0.058* 3.1 (3.4) 1.5 (2.3) <0.001*
Components of MetS:
 Waist n (%) 102 (64) 8 (4) <0.001 134 (79) 40 (16) <0.001
 FP-glucose n (%) 144 (91) 113 (62) <0.001 139 (83) 85 (33) <0.001
 Blood pressure n (%) 146 (92) 119 (65) <0.001 154 (90) 126 (49) <0.001
 HDL-cholesterol n (%) 90 (57) 2 (1) <0.001 101 (59) 10 (4) <0.001
 Triglycerides n (%) 116 (73) 16 (9) <0.001 118 (69) 6 (2) <0.001
Life-style factors, n (%):
 Current smoker 42 (26) 46 (25) 0.81 25 (14) 49 (19) 0.23
 Current use of alcohol       0.038
  Low (nothing) 20 (12) 26 (14) 0.055 46 (28) 46 (18)  
  Moderate 68 (43) 97 (54) 0.055 97 (58) 177 (70)  
  High 71 (45) 58 (32) 0.055 24 (14) 31 (12)  
Physical activity n (%)       0.83
  Low 33 (21) 56 (31) 0.11 55 (33) 80 (32)  
  Moderate 97 (61) 96 (53) 0.11 92 (55) 146 (57)  
  High 29 (18) 30 (16) 0.11 21 (12) 28 (11)  
  1. *Values are adjusted for age.
  2. ** Mean (SD).
  3. Abbreviations: Fp-gluc, fasting plasma glucose; BP systolic, systolic blood pressure; BP diastolic, diastolic blood pressure; HDL-C, high density cholesterol; Trigly, triglycerides; TFR, transferrin receptor; Hs-CRP, high sensitivity c-reactive protein.
  4. Components of MetS.
  5. 1. Waist >102 cm (male) or >88 cm (female).
  6. 2. FP-glucose ≥ 5.6 mmol/L.
  7. 3. Systolic blood pressure ≥ 130 mmHg or diastolic ≥ 85 mmHg or antihypertensive medication.
  8. 4. HDL–cholesterol < 1.03 mmol/l (men) or < 1.29 mmol/l (women) or medication for dyslipidemia.
  9. 5. Triglycerides >1.7 mmol/l or medication for dyslipidemia.
  10. Current use of alcohol was consireded low with no use of alcohol, moderate with use of <2 portions/day and high with use of >2 portions/day. Physical activity was considered to be high in subjects who exercised daily at least 30 minutes in their leisure time, moderate in subjects who exercised at least three times per week, and low if exercising frequency was less than three times per week.