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Table 1 Characteristics of patients according to absence or presence of metabolic syndrome

From: Parathyroid hormone, but not vitamin D, is associated with the metabolic syndrome in morbidly obese women and men: a cross-sectional study

Variables

Total

Metabolic syndrome

Absent

Present

P

n

1017

323 (32%)

694 (68%)

 

Women

68%

73%

65%

0.008

Age (years)

42 (12)

39 (12)

44 (12)

<0.001

Type 2 diabetes

26%

1.5%

37%

<0.001

Coronary heart disease

4.3%

0.9%

5.9%

0.001

Elevated blood pressure

70%

40%

83%

<0.001

Current smoking

26%

27%

26%

0.735

BMI (kg/m2)

44.7 (6.2)

44.2 (6.1)

45.0 (6.2)

0.079

Waist (cm)

133 (14)

130 (15)

134 (14)

<0.001

PTH, vit D and magnesium

    

PTH (pmol/l)

5.8 (2.3)

5.6 (2.3)

5.9 (2.4)

0.067

25(OH)D (nmol/l)

52 (22)

53 (20)

52 (23)

0.127

Magnesium (mmol/l)

0.84 (0.08)

0.86 (0.07)

0.84 (0.08)

<0.001

Calcium (mmol/l)

2.35 (0.07)

2.35 (0.06)

2.36 (0.07)

0.392

Phosphate (mmol/l)

1.09 (0.17)

1.09 (0.15)

1.10 (0.17)

0.517

Creatinine (μmol/l)

65 (11)

65 (10)

66 (12)

0.889

Vitamin D supplement use

11%

11%

11%

1.000

HbA1c and insulin resistance

    

HbA1c

6.0 (1.3)

5.3 (0.4)

6.3 (1.4)

<0.001

HOMA-IR

6.3 (6.0)

3.9 (2.3)

7.5 (6.8)

<0.001

Inflammation

    

CRP (≥ 7 mg/l)

69%

67%

70%

0.400

Drugs

    

Thiazides

14%

7%

17%

<0.001

Loop diuretics

9%

4%

11%

<0.001

Angiotensin II Type 1 Receptor

8%

3%

10%

0.001

Blocker or ACE-inhibitor use

    

Albuminuria

11%

4%

14%

<0.001

  1. Data are means (SD) for continuous variables and % for categorical variables