This questionnaire has not been validated but is based on known risk factors for vitamin D deficiency
1. Do you regularly have the opportunity to expose your head, hands, and arms in a period of sunshine for circa 20 minutes between 11 a.m. and 3 p.m? Regularly Occasionally Never
2. Do you use sunscreen? Yes No
3. Do you have dark skin? Yes No
4. Are you over 70 years of age? < 70 years 70-80 years > 80 years
5. Do you practice any sport or activity outdoor (at least 3 hours per week) Yes No
6. Are you overweight (BMI between 25 and 29.9) or obese (BMI of 30 or more) - BMI : body mass index = kg/m² Normal weight Overweight Obese
7. Do you regularly take vitamin D suplementation or omega 3 fish oil? Yes No
8. Do you regularly eat food rich in vitamin D? (egg yolk, butter, oily fish, liver) Yes No
9.Did you have weight-loss surgeries (bariatric surgery ) such as gastric bypass, sleeve gastrectomy, adjustable gastric band, and biliopancreatic diversion with duodenal switch, or do you suffer from digestive diseases with chronic malabsorption? Yes No
10. Did you take oral cortisone for more than 3 months in your life? Never Once More than once
11. Did you fall without cause or did you have non-traumatic fractures? No Once More than once