Demographical descriptives
Age was calculated from the date of birth to the date of answering to the prequestionnaire. BMI was calculated as body mass (kg) divided by height squared (m2). Body mass and height were measured in the morning of the Phase 3 laboratory visit after overnight fasting and participant wearing only undergarments. Level of education was self-reported with a structured question and participants were classified into two groups based on their answers: those with bachelor level or higher education (tertiary) and those with education lower than bachelor level (secondary). Work-related physical activity was assessed also with a structured question. Based on their answers participants were classified into three groups: mainly sedentary work, work that includes standing and walking, and heavy work that includes also lifting.