Table 1. Demographic, behavioral, and lifestyle characteristics of MEDIS Study participants grouped by altitude of living, i.e., low or high altitude.

Legend: Data are mean ± SD, or percentage; p-values are derived using Student's t-test for normally distributed variables (age, school years, MedDietScore, annual visits to health centers), or Pearson's chi-square test for the categorical ones (annual income, current smoker, former smoker, minimally or HEPA active, living alone). AI: annual income. HEPA: health-enhancing physical activity. NS: not significant.