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Table 1 Description of the variables collected in the global sample, and stratified by ancestry.

From: Low wintertime vitamin D levels in a sample of healthy young adults of diverse ancestry living in the Toronto area: associations with vitamin D intake and skin pigmentation

  Total Sample* East Asian European South Asian
N (Females, Males) 107 (57, 50) 27 (17, 10) 32 (16, 16) 32 (19, 13)
Age 21 (18, 25) 21 (18, 24) 21 (18, 26) 21 (18, 25)
BMI 19.9 (15.0, 26.6) 18.6 (14.9, 27.4) 20.7 (16.5,28.0) 19.9 (14.4, 25.8)
Melanin Index 35.1 (26.3, 52.7) 32.0 (27.5, 36.8) 28.6 (25.2, 32.0) 38.3 (31.8, 46.8)
25(OH)D (nmol/L) 39.4 (15.3, 77.1) 34.5 (15.1, 71.5) 55.9 (26.7, 96.3) 30.5 (13.3, 51.6)#
PTH (pmol/L) 3.4 (1.8, 5.4) 3.1 (1.9, 4.7) 3.1 (1.8, 5.2) 3.5 (1.7, 5.3)
Calcium (nmol/L) 2.4 (2.3, 2.5) 2.4 (2.2, 2.6) 2.4 (2.3, 2.5) 2.4 (2.3, 2.5)
Phosphate (nmol/L) 1.1 (0.8, 1.3) 1.1 (0.9, 1.3) 1.1 (0.8, 1.3) 1.1 (0.8, 1.4)
Creatinine (μmol/L) 69.4 (48.0, 92.7) 66.5 (45.2, 92.7) 72.9 (56.6, 90.9) 66.8 (48.0, 91.0)
  1. Mean values and 5th and 95th percentiles (in parentheses) are reported.*Total sample comprises individuals of African ancestry (n = 7), East Asian ancestry (n = 27), European ancestry (n = 32), Other ancestry (n = 9), and South Asian ancestry (n = 32). #25(OH)D measurements were not available for one individual of South Asian ancestry, hence n = 106 for this variable.