Table 1 Data related to The Probabilities, Costs and Expenditures^a

 The probability of vitamin D deficiency before starting the supplementation program [16]

76%

 The probability of vitamin D sufficiency before starting the supplementation program [16]

24%

 The probability of vitamin D deficiency after starting the supplementation program [27]

17.2%

 The probability of vitamin D sufficiency after starting the supplementation program [27]

87.2%

 The prevalence of diabetes incidence in people with vitamin D deficiency [26].

12.8%

 The prevalence of diabetes incidence in people with adequate vitamin D levels [26].

7%

 The costs of the 9 pearls of vitamin D for each student

0.236–0.472USD

 The costs of the training staff to perform or supervise the project

0.25 USD

 The total costs of a one-year national program of vitamin D supplementation

0.499–0.72 USD

 The 2018-adjusted costs of diabetes management for each patients during one year

709 USD