Table 1 Clinical and biochemical characteristics of the participants at each visit

From: Hypovitaminosis D and incidence of obesity: a prospective study

  Baseline Second visit Third visit
Age (years): mean± s.d. and range 40.2±13.3 (18–68) 46.2±13.7 (23–72) 52.1±13.2 (27–77)
Sex (male) (%) 37.1 36.9 38.1
BMI (kg/m2): mean±s.d. and range 27.5±4.9 (16.3–46.9) 28.7±5.2 (16.6–51.9) 29.3±5.5 (18–64–49.7)
Obesity (BMI30) (%) 28.1 36.2 39.5
Diabetes (%) 13.4 20.3 17.3
25-hydroxyvitamin D (ng/ml): mean±s.d. and range   22.8±6.2 (5.4–50.5)  
iPTH levels (pg/ml): mean±s.d. and range   43.9±17.9 (13.2–96.2)  
25-hydroxyvitamin D <20 ng/ml (%)   34.7  
25-hydroxyvitamin D <30 ng/ml (%)   88.9  
  1. Abbreviation: BMI, body mass index.