Current status of vitamin A deficiency in preschool children in Dongguan, China and the effect of vitamin A on serum ferritin and red blood cell parameters / 中国当代儿科杂志
Chinese Journal of Contemporary Pediatrics
;
(12): 195-199, 2018.
Article
in Chinese
| WPRIM
| ID: wpr-300365
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the current status of vitamin A deficiency in preschool children in Dongguan, China, as well as the effect of vitamin A on serum ferritin, red blood cell, and reticulocyte parameters.</p><p><b>METHODS</b>Cluster sampling was performed from April 2015 to December 2016 to select 2 085 preschool children (3-6 years old) without any disease in Dongguan. Routine blood test, reticulocyte count, serum ferritin measurement, hemoglobin electrophoresis, and vitamin A measurement were performed for all children. The associations of age and sex with vitamin A and serum ferritin concentrations were analyzed. The effect of vitamin A concentration on serum ferritin, red blood cell, and reticulocyte parameters and the effect of reduced iron storage caused by vitamin A deficiency on red blood cell parameters were evaluated.</p><p><b>RESULTS</b>Of the 2 085 children, 140 (6.71%) had reduced iron storage, and 678 (32.52%) had vitamin A deficiency. Among the 678 children with vitamin A deficiency, 647 (95.4%) had subclinical deficiency and 31 (4.6%) had clinical deficiency. There was no significant difference in vitamin A concentration between boys and girls, however girls had a significantly higher serum ferritin concentration than boys (P<0.05). The clinical vitamin A deficiency group had a significantly higher serum ferritin concentration than the subclinical vitamin A deficiency group and the normal group (P<0.05). In cases of vitamin A deficiency, the reduced iron storage group had significant reductions in mean corpuscular volume and mean corpuscular hemoglobin than the normal iron storage group (P<0.05). Compared with the normal vitamin A group, the vitamin A deficiency group had significantly lower hemoglobin concentration, mean corpuscular hemoglobin, red blood cell count, hematocrit, absolute reticulocyte count, reticulocyte percentage, and reticulocyte hemoglobin content, as well as a significantly higher mean corpuscular volume (P<0.05).</p><p><b>CONCLUSIONS</b>Vitamin A deficiency is prevalent in preschool children in Dongguan, China, and it may adversely affect serum ferritin, red blood cell, and reticulocyte parameters.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Vitamin A
/
Vitamin A Deficiency
/
Blood
/
Hemoglobins
/
Chemistry
/
Erythrocytes
/
Ferritins
Limits:
Child
/
Child, preschool
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Contemporary Pediatrics
Year:
2018
Type:
Article
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