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Objectives: The study aimed to determine the rate of hypocalcaemia, clinical manifestations, paraclinical and some related factors.
Subjects: Subjects of the study were children under 12 months of age at the Nghe An Obstetrics and Pediatrics Hospital in 2019.
Research methodology: Cross-sectional descriptive study.
Results: The clinical symptom associated with hypocalcaemia is the manifestation of early rickets, such as crying, startling/convulsions, little sleep, and persistent sweating with a high rate (64-80%). The average blood calcium is 1.37 mmo/l, the average calcium ion is 0.74 mmo/l. There is a correlation between total blood calcium concentration and calcium ion concentration r = 0.67, y = 0.43x + 0.04, p = 0.03. Factors related to hypocalcaemia are young ages 1 to 6 months, infants who are not exclusively breastfed.
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