Table 1 Outcome measures and time to be measured

Blood analysis

  Serum 25(OH)D

x

x

x

  Serum calcium

x

x

x

  Serum PTH

x

x

x

  Fasting blood glucose

x

x

x

  Fasting blood insulin

x

x

x

  Total cholesterol

x

x

x

  Triglycerides

x

x

x

  HDL-C

x

x

x

  LDL-C

x

x

x

Anthropometry and clinical assessments

  Height, weight, BMI

x

x

x

  Blood pressure

x

x

x

  Waist circumference

x

x

x

Questionnaires

  Sociodemographics

x

  Medical and family history

x

  Dietary assessment

x

x

  SF36 version 2

x

x

  Sunlight exposure history

x

x

  IPAQ

x

x