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Table 2 Mean hemoglobin and prevalence of anemia in children 6–59 months of age, by presence of sickle cell and β-thalassemia mutations, Sierra Leone, 2013

From: Association between sickle cell and β-thalassemia genes and hemoglobin concentration and anemia in children and non-pregnant women in Sierra Leone: ancillary analysis of data from Sierra Leone’s 2013 National Micronutrient Survey

  Na Mean Hb (g/L) p value % Anemia Risk ratio Risk ratio (95% CI)
Sickle cell
 HbAA or HbAC 306 99.0 0.559 73.5 Reference
 HbAS or HbSC 61 99.9   70.5 0.96 (0.81, 1.1)
 HbSS 21 96.5   90.5 1.2 (1.05, 1.4)
β-Thalassemia
 No 324 98.7 0.280 74.1 Reference
 Yes 64 100.9   73.4 0.99 (0.84, 1.2)
  1. a The n’s are un-weighted denominators for each subgroup