Regions Group B (low ferritin, normal Hb) Female Male Total valueGroup C (low ferritin and low Hb) Female Male Total valueDammam Region total 34 (81.0%) 8 (19.0%) 42/174 (24.1%) <0.001 Region total 17 (85%) 3 (15%) 20/174 (11.5%) 0.001 Ferritin ≥15 and <30, Hb ANL 19 5 Ferritin ≥15 and <30, Hb low 4 1 Ferritin ≥12 and <15, Hb ANL 5 1 Ferritin ≥12 and <15, Hb low 2 0 Ferritin <12, Hb ANL 10 2 Ferritin <12, Hb low 11 2 Makkah Region total 112 (95.7%) 5 (4.3%) 117/276 (42.4%) <0.001 Region total 27 (100%) 0 (0%) 27/276 (9.8%) - Ferritin ≥15 and <30, Hb ANL 58 4 Ferritin ≥15 and <30, Hb low 5 0 Ferritin ≥12 and <15, Hb ANL 20 1 Ferritin ≥12 and <15, Hb low 1 0 Ferritin <12, Hb ANL 34 0 Ferritin <12, Hb low 21 0 Madina Region total 47 (81%) 11 (19.0%) 58/293 (21%) <0.001 Region total 29 (96.7%) 1 (3.3%) 30/293 (10.2%) 0.033 Ferritin ≥15 and <30, Hb ANL 29 11 Ferritin ≥15 and <30, Hb low 4 1 Ferritin ≥12 and <15, Hb ANL 2 0 Ferritin ≥12 and <15, Hb low 0 0 Ferritin <12, Hb ANL 16 0 Ferritin <12, Hb low 25 0 Riyadh Region total 37 (86.0%) 6 (14.0%) 43/165 (26.1%) <0.001 Region total 16 (88.9%) 2 (11.1%) 18/165 (10.9%) 0.007 Ferritin ≥15 and <30, Hb ANL 22 5 Ferritin ≥15 and <30, Hb low 5 0 Ferritin ≥12 and <15, Hb ANL 3 1 Ferritin ≥12 and <15, Hb low 3 0 Ferritin <12, Hb ANL 12 0 Ferritin <12, Hb low 8 2