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Table 7 Folic acid deficiency and low zinc concentration by iron status

From: Prevalence of anemia and deficiency of iron, folic acid, and zinc in children younger than 2 years of age who use the health services provided by the Mexican Social Security Institute

  Regular Regimen (RR)
Iron status Folic acid deficiency by iron status h
n= 2025
N= 856,699
Low zinc concentration by iron statusi
n= 2268
N= 996,996
  Cases/ n N %f 95% CI Cases/ n N %g 95% CI
Normala 91/1135 493903 8.3 2.5, 24.1 328/1264 567943 26.1 19.4, 34.1
Iron deficiency without anemiab 43/474 194059 10.8 3.8, 26.9 130/515 216433 25.8 18.4, 34.9
Anemiac 80/416 168736 19.3 10.5, 32.8 139/489 212621 30.2 22.1, 39.3
Iron deficiency anemia d 39/214 84405 18.5 10.9, 29.7 76/246 105359 32.7 23.0, 44.3
Anemia due to other causes e 41/202 84331 20.1 8.9, 39.5 63/243 107262 27.8 18.3, 39.8
IMSS-Oportunidades (IO)
Iron status Folic acid deficiency by iron status h
n = 1062
N = 88,848
Low zinc concentration by iron status i
n = 1214
N = 92,310
  Cases/ n N % f 95% CI Cases/ n N % g 95% CI
Normala 27/517 55564 8.8 2.6, 25.5 128/616 56805 11.4 5.3, 22.8
Iron deficiency without anemiab 8/298 18733 8.3 1.5, 34.5 80/334 19425 9.9 6.2, 15.4
Anemiac 18/247 14550 12.8 2.4, 46.8 85/264 16080 15.1 7.9, 26.8
Iron deficiency anemia d 11/122 6143 23.8 6.0, 60.5 39/128 6753 8.2 3.8, 16.7
Anemia due to other causes e 7/125 8407 4.8 0.3, 45.8 46/136 9327 20.1 8.8, 39.5
  1. N Population size (expanded sample)
  2. a Hemoglobin above the cut-off point for anemia and ferritin > = 10 μg/L
  3. b Ferritin < 10 μg/L and Hb > = cut-off for anemia
  4. c Hb < cut-off for anemia
  5. d Ferritin < 10 μg/L and Hb < cut-off for anemia
  6. e Ferritin ≥ 10 μg/L and Hb < cut-off for anemia
  7. f Comparing folic acid deficiency between iron status, RR p = 0.102; IO p = 0.208
  8. g Comparing low zinc concentration between iron status, RR p = 0.444; IO p = 0.238
  9. h Comparing folic acid deficiency between RR and IO according to iron status (p = 0.387)
  10. i Comparing low zinc concentration between RR and IO according to iron status (p = 0.220)