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  • Title: Anthropometric indices, cord length and placental weight in newborns.
    Author: Jaya DS, Kumar NS, Bai LS.
    Journal: Indian Pediatr; 1995 Nov; 32(11):1183-8. PubMed ID: 8772867.
    Abstract:
    A study on the anthropometric indices of 3835 singleton newborn babies was conducted over a four months period at Sree Avittom Thirunal Hospital, Trivandrum. Of these, 1921 (50.1%) were male babies and 1914 (49.9%) were female babies. The majority of infants (43%) were born to the middle socio-economic groups and the mean birth weight of babies was high among the high-income groups. Five hundred and ninety six (15.5%) babies weighed less than 2500 g; of these 121 (20.2%) were preterm and 477 (79.8%) were full term. The prevalence of low birth weight (LBW) was high (22.0%) among the mothers aged between 15 and 19 years. There was a significant difference (p < 0.001) in the mean birth weight (BW) of term male and female babies but there was no significant differences in their body length, head circumference and cord length. The mean ponderal index of term newborn babies was 2.3 g/cm3. The mean placental weight of LBW term and preterm babies was less than that of the corresponding normal weight babies. The birth weight of babies was directly proportional to their placental weight. A study of the 3835 singleton infants delivered at Sree Avittom Thurunal Hospital in Trivandrum, India, over a 3-month period in 1993 sought to identify correlates of low birth weight (LBW, defined as under 2500 g). The mean birth weight among these infants was 2821 +or- 479.8 g. 125 babies (3.3%) were preterm and 596 (15.5%) were LBW. Mean birth weight increased with increases in maternal socioeconomic status; 17.9% of infants with mothers with low socioeconomic status compared to 11.1% of those with mothers in the highest socioeconomic category were LBW. The prevalence of LBW was 22% among mothers aged 15-19 years compared to 11.5% among those 35-39 years of age. The mean birth weight of male term infants was significantly higher than that of female term infants (2905.2 +or- 431.4 g and 2819.7 +or- 410.9 g, respectively). There were no significant differences in mean body length, head circumference, or cord length by sex. Birth weight was directly proportional to placental weight and, in both LBW full-term and preterm infants, the placental weight was less than that of corresponding normal weight infants. Finally, the mean ponderal index of LBW term babies (1.86 g/cu. cm) and LBW preterm babies (1.37 g/cu. cm) was less than that of normal-weight term babies (2.32 g/cu. cm) and preterm babies (1.78 g/cu. cm). Overall, these findings are consistent with those of other studies conducted in India.
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