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Table 1 General characteristics of the participating women

From: Association between vitamin D and glycaemic parameters in a multi-ethnic cohort of postmenopausal women with type 2 diabetes in Saudi Arabia

Variables

(N = 173) Results

• Age (years)

59.6 ± 6.8

• Age at menopause (years)

49.7 ± 4.2

• Years since menopause

9.8 ± 7.2

• Age at T2DM diagnosis (years)

46.7 ± 9.3

• Years since T2D

12 (6–20)

• T2D therapy mode

 Diet

5 (3 %)

 OHD

91 (53 %)

 Diet + OHD

3 (2 %)

 Insulin

15 (9 %)

 Insulin + OHD

59 (34 %)

• Use of statin therapy

84 (49 %)

• Hypertensive (according to medical records)

 Yes

125 (72 %)

 No

48 (28 %)

• SBP (mmHg)

144 ± 23

• DBP (mmHg)

82 (76–90)

• Marital status

 

 Single

1 (1 %)

 Married

113 (65 %)

 Divorced

10 (6 %)

 Widow

49 (28 %)

• Education

 Illiterate

73 (42 %)

 Elementary

36 (21 %)

 Intermediate

29 (17 %)

 Secondary

25 (14 %)

 University

10 (6 %)

 Postgraduate

0 (0 %)

• Occupation

 Housewife

160 (93 %)

 Governmental employed

0 (0 %)

 Privately employed

4 (2 %)

 Self-employed

0 (0 %)

 Retired

9 (5 %)

• Ethnicity

White (Arabic)

126 (73 %)

Black (African)

30 (17 %)

South Asian (Pakistani)

17 (10 %)

• Skin tone (Fitzpatrick)a

 Type I  (light, pale white)

0 (0 %)

 Type II (white, fair)

24 (14 %)

 Type III (medium white to olive)

68 (39 %)

 Type IV (olive, mid brown)

50 (29 %)

 Type V (brown, dark brown)

31 (18 %)

 Type VI (very dark brown, black)

0 (0 %)

• Sun exposure

 < 1 h/week

85 (49 %)

 1–2 h/week

48 (28 %)

 2–3 h/week

21 (12 %)

 > 3 h/week

19 (11 %)

• Veiling type

 Totally covered (use of niqab: eyes exposed only)

125 (72 %)

 Partially covered (face exposed)

48 (28 %)

• Use of sunscreen

0 (0 %)

• Subjects consuming dietary VitD above EARb

0 (0 %)

• Physical activity

 Yes

53 (31 %)

 No

120 (69 %)

• Smoking

 Yes

3 (2 %)

 No

170 (98 %)

• Serum total cholesterol (mmol/L)

4.2 ± 1.3

• Serum triglyceride (mmol/L)

1.4 (0.99–2.2)

• Serum HDL-C (mmol/L)

1.0 (0.8–1.3)

• Serum LDL-C (mmol/L)

2.15 (1.7-3.0)

• Serum VLDL-C (mmol/L)

0.62 (0.45-1.0)

• Serum hs-CRP (mg/L)

5.4 (2.8–9.9)

  1. The numerical data are presented as mean ± SD if normally distributed and as median (IQR) if non-normally distributed. Descriptive data are presented as n (%).T2D is Type 2 Diabetes Mellitus. OHD is Oral Hypoglycemic Drugs. BMI represents Body Mass Index, WHR Waist Hip Ratio, SBP Systolic Blood pressure, DBP Diastolic Blood Pressure
  2. aFitzpatrick scale [20]. EAR is estimated average requirement
  3. bEAR for women aged 50 y and over based on IOM recommendation (600-800 IU/day) [21]. 25(OH)D is 25-hydroxyvitamin D; PTH is Parathyroid Hormone; Ca is Calcium; PO4 is Phosphate; and Mg is Magnesium. HDL-C is high lipoprotein cholesterol; LDL-C is low density lipoprotein cholesterol; VLDL-C is very low density lipoprotein cholesterol; and hs-CRP is high sensitive C-reactive protein