TO ESTABLISH THE NORMS FOR BODY MASS INDEX(BMI) FOR PRETERM, TERM AND POST TERM NEWBORNS

Dr Pankaj Kumar Singhal, Dr Shweta Goyal

Abstract


Objective(s): To establish the norms for body mass index of preterm, term and post term newborns.
Method(s): Maternal data regarding period of gestation from first day of last menstrual period and Newborns data regarding
sex, gestation age by modified ballard's score, birth weight (by digital weighing machine in grams), length (by infantometer in
cm.), head circumference (cm) recorded. Examination was carried out in the special care unit within 24 hours of the delivery at the
temperature 29-31°C with good diffuse light .
Observation(s) : ). The correlation coefficient between B.M.I. and gestational age is highly significant. From 28 to 40 weeks the
rise in B.M.I. is progressive .After 40 weeks B.M.I. decelerates. The results so obtained have been compared with other Indian and
foreign authors. Curves for B.M.I. have been constructed with ± 2 S.D. depicting values of different gestational ages
Conclusion(s) There are yet no nationally and internationally acceptable standards of Body mass index. Which is now considered
a better index for assessment of growth, so we studied the B.M.I. of Preterm, Term and Post term newborns ,as the Body mass
index (B.M.I.) is a simple index of weight for height that is commonly used to classify underweight, normal weight, overweight
and obesity in growing children and adults internationally.


Keywords


Body Mass Index, Preterm, Ballards Score, Gestation Age ,newborn, Circumference, Growth Curves

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References


Care of newborn, Meharban singh, 6th edition p.1-3.

Purohit A et al. Determination of intrauterine Growth curves of weight, Length and Head circumference. Rajasthan medical journal Vol 18th, No. 3, 1979.

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Laxminarayan et al. Fetal growth as accessed by anthopometric measurement. Indian paediatrics, 12: 803, 1974.

Lubchenco et al. Intrauterine growth in length and head circumference as estimated from live births at gestational age 26 to 42 weeks. Pediatrics 37: 403, 1966.


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