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Birth weight percentiles by gestational age: a hospital based study
1Department of Obstetrics & Gynaecology, Ayub Teaching Hospital, Abbottabad.
Journal of Ayub Medical College, Abbottabad : JAMC
|December 6, 2001
Summary
This study developed birth weight for gestational age normograms for Pakistani infants, including singletons and twins. These new charts provide essential benchmarks for assessing fetal growth in the region.
Area of Science:
- Perinatal Medicine
- Pediatric Growth Standards
- Public Health
Background:
- Lack of population-based birth weight normograms for the Pakistani population.
- Need for accurate gestational age-specific birth weight references.
Purpose of the Study:
- To develop birth weight for gestational age normograms for singleton and twin births in Pakistan.
- To establish a reference standard for perinatal assessment in the region.
Main Methods:
- Prospective cohort study of 4041 deliveries from January 1992 to December 1994 at Agha Khan University Hospital, Karachi.
- Inclusion of singleton and twin pregnancies from 28 to 44 weeks gestation.
- Exclusion of pregnancies with intrauterine or intrapartum deaths.
Main Results:
- Data from 4112 infants (4041 deliveries, including 71 sets of twins) were analyzed.
- Male infants were heavier than female infants at each gestational week.
- Preterm birth rate was 10.24% (414/4041); males had higher preterm birth rates, while females had higher low birth weight rates.
Conclusions:
- Established the first population-based birth weight for gestational age normograms for Pakistani infants.
- Highlighted sex-based differences in birth weight and preterm birth rates.
- Provided a crucial tool for monitoring fetal growth and identifying at-risk neonates in Pakistan.