[1] King Saud Univ, Obes Res Ctr, Riyadh, Saudi Arabia
[2] King Saud Univ, Dept Med, Riyadh, Saudi Arabia
[3] King Saud Univ, Dept Pathol, Clin Chem Unit, Riyadh, Saudi Arabia
[4] King Saud Univ, Coll Med, Dept Community Hlth Sci, Riyadh, Saudi Arabia
[5] King Saud Univ, Coll Appl Med Sci, Post Grad Program Family Med, Riyadh, Saudi Arabia
[6] King Fahad Med City Riyadh, Minist Hlth, Obes Endocrine & Metab Ctr, Riyadh, Saudi Arabia
[7] King Fahad Med City Riyadh, Dept Prevent Med, Riyadh, Saudi Arabia
[8] Yanbu Gen Hosp, Minist Hlth, Dept Prevent Med, Yanbu, Saudi Arabia
[9] Taibah Univ, Dept Med, Madinah, Saudi Arabia
[10] Minist Hlth, Family Med Post Grad Ctr, Khobar, Saudi Arabia
[11] Prince Abdul Majeed Hlth Ctr, Directorate Hlth Affairs, Directorate Publ Hlth, Jeddah, Saudi Arabia
[12] McMaster Univ, Dept Family Med, Hamilton, ON, Canada
[13] McMaster Univ, Dept Clin Epidemiol & Biostat & Med, Hamilton, ON, Canada