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Table 1 Baseline characteristics of subject groups who received vitamin D3 supplements (25 μ/d) or placebo before the intervention

From: A 12-week double-blind randomized clinical trial of vitamin D3supplementation on body fat mass in healthy overweight and obese women

Characteristics

Vitamin D group

Placebo group

P-value

Age (y)

38±72

37±8

0.29

Body weight (kg)

73.9±10.2

75.1±11.9

0.61

Height (cm)

156.5±5.8

159.3±5.6

0.035

Waist circumference (cm)

89.9±8.7

91.2±12.1

0.59

Hip circumference (cm)

108±8.5

108.2±8.1

0.91

BMI (kg/m2)

30.1±3.9

29.5±4.4

0.54

Fat mass (kg)

30.2±6.9

29±8.7

0.53

Fat free mass (kg)

43.7±5.1

45.9±4.7

0.05

Physical activity (MET-minutes/week)

902±1245

702±996

0.43

Energy intake (kcal/d)

1866±927

2060±834

0.33

Carbohydrate intake (g/d)

280±134

329±140

0.12

Fiber intake (g/d)

16±9

18±10

0.23

Protein intake (g/d)

64±29

76±35

0.10

Fat intake (g/d)

55±44

49±24

0.43

Dietary calcium intake (mg/d)

873±586

677±386

0.08

Dietary vitamin D intake (μg/d)

0.53±0.6

0.39±0.37

0.22

25(OH) D (nmol/L)2

36.8±30

46.9±32

0.15

iPTH (pmol/L)2

1.4±0.7

1.4±0.7

0.84

Calcium (mmol/L)

2.2±0.09

2.3±0.1

0.004

Phosphorus (mmol/L)

1.1±0.1

1.1±0.1

0.6

  1. aMean ± SD (all such values).
  2. b25(OH) D, 25-hydroxyvitamin D; PTH, parathyroid hormone. To convert 25(OH) D values to ng/mL, divide by 2.5. To convert PTH values to pg/mL, divide by 0.11.