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Change of BMI in catch-up growth of low birth weight infants aged 0-24 months / 上海预防医学
Shanghai Journal of Preventive Medicine ; (12): 535-2020.
Article in Chinese | WPRIM | ID: wpr-876210
ABSTRACT
Objective To investigate the changes and characteristics of body mass index (BMI) of low birth weight infants during catch-up growth within 24 months of life. Methods Using the birth cohort method, 126 low birth weight children (birth weight less than 2 500 g) among the registered and permanent born in Jiading District from January 2016 to December 2016, were enrolled in the study voluntarily.According to the calculation of birth weight and gestational week, 73 children were included in the preterm appropriate for gestational age group and 53 in the full-term small for gestational age group.105 children with gestational age of 37-41 weeks and birth weight of 2 500-3 999 g were included as the control group.The differences of BMI mean and standard deviation were compared between 0-24 months old in three groups, and the changes of BMI curve analyzed between 0-24 months old in boys and girls. Results ① There were 231 infants investigated, who were composed by 111 boys and 120 girls; ② The BMI of the two groups of low birth weight infants at birth and at 2 months old were lower than those of the control group.There was no significant difference between the BMI of preterm appropriate for gestational age group and the control group since the age of 4 months.The BMI of the term small for gestational age group was less than the other two groups between 4 and 18 months of age, the difference was statistically significant (P < 0.05);③ The BMI index of the three groups showed a rapid rise after birth.It peaked at 4-6 months of age, and the BMI value of 7-9 months of age began to fall.Preterm appropriate for gestational age group infants caught up with the BMI of normal-weight infants at 6 months of age.Until the age of 24 months, the BMI of small for gestational age group was still different from normal weight infants, but the difference between the three groups decreased.The rising curves of BMI between boys and girls were similar, but the peak of preterm appropriate for gestational age group girls was lengthened. Conclusion There is a significant catch-up growth for low birth weight infants aged 0-24 months, having a similar trend of normal infants in the late stage.It is necessary to deliver proper breeding education and intervention to the low birth weight infants in their early stages.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Shanghai Journal of Preventive Medicine Year: 2020 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Shanghai Journal of Preventive Medicine Year: 2020 Type: Article