Journal of the American College of Nutrition · 2014
Evaluation of arm span and sitting height as proxy for height in children with sickle cell anemia in Lagos, Nigeria.
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Akodu Samuel Olufemi, Diaku-Akinwumi Ijeoma Nnenna, Kehinde Omolara Adeolu, Njokanma Olisamedua Fidelis
Аннотация
BACKGROUND: Sickle cell anemia may affect linear growth, and complications like avascular necrosis of femoral head may make direct measurement of height difficult.
OBJECTIVE: To determine the relationship between height and arm span as well as between height and sitting height among children with sickle cell anemia in Lagos, Nigeria.
METHODOLOGY: A random sample of 200 children aged 8 months to 15 years were studied-100 with hemoglobin genotype SS and 100 with hemoglobin genotype AA, matched for age and sex. Height/length, sitting height, and arm span were measured. Correlations and regression analysis were performed to test the relationship between height as a dependent variable and the sitting height and arm span as independent variables.
RESULTS: Height, arm span, and sitting height were slightly but not significantly lower in subjects with sickle cell anemia. Strong correlations (R ≥ 0.95) were observed between height and other measurements in both subgroups. Regression analysis with height as the independent variable showed that arm span had a higher coefficient of determination than sitting height in both subjects (R(2) = 0.94 vs 0.899) and controls (R(2) = 0.942 vs 0.940). On the other hand, sitting height had a lower mean difference between observed and predicted height (0.04 and -0.11, respectively).
CONCLUSION: Sitting height may be the preferred proxy for height in children with sickle cell anemia.
OBJECTIVE: To determine the relationship between height and arm span as well as between height and sitting height among children with sickle cell anemia in Lagos, Nigeria.
METHODOLOGY: A random sample of 200 children aged 8 months to 15 years were studied-100 with hemoglobin genotype SS and 100 with hemoglobin genotype AA, matched for age and sex. Height/length, sitting height, and arm span were measured. Correlations and regression analysis were performed to test the relationship between height as a dependent variable and the sitting height and arm span as independent variables.
RESULTS: Height, arm span, and sitting height were slightly but not significantly lower in subjects with sickle cell anemia. Strong correlations (R ≥ 0.95) were observed between height and other measurements in both subgroups. Regression analysis with height as the independent variable showed that arm span had a higher coefficient of determination than sitting height in both subjects (R(2) = 0.94 vs 0.899) and controls (R(2) = 0.942 vs 0.940). On the other hand, sitting height had a lower mean difference between observed and predicted height (0.04 and -0.11, respectively).
CONCLUSION: Sitting height may be the preferred proxy for height in children with sickle cell anemia.