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Related Experiment Videos

Low birth-weight in NSW, 1987: a population-based study

C Algert1, C Roberts, P Adelson

  • 1Epidemiology and Health Services Evaluation Branch, NSW Department of Health, Sydney.

The Australian & New Zealand Journal of Obstetrics & Gynaecology
|August 1, 1993
PubMed
Summary

Maternal demographics and reproductive history significantly impact infant birth weight. Factors associated with small for gestational age (SGA) births differ from those linked to preterm births.

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Area of Science:

  • Obstetrics & Gynecology
  • Perinatal Epidemiology
  • Public Health

Background:

  • Low birth weight is a critical indicator of infant health and survival.
  • Understanding risk factors for low birth weight is essential for targeted interventions.
  • Small for gestational age (SGA) and preterm births are distinct categories of low birth weight with potentially different etiologies.

Purpose of the Study:

  • To investigate the association between various demographic and reproductive history factors and low birth weight in New South Wales.
  • To differentiate risk factors for small for gestational age (SGA) births versus preterm births.
  • To identify key predictors of adverse birth outcomes.

Main Methods:

  • Utilized the New South Wales perinatal data collection for singleton births in 1987.

Related Experiment Videos

  • Categorized low birth weight infants into SGA and preterm groups.
  • Employed univariate analysis and multivariate logistic regression to assess risk factors.

    • Main Results:

    • Demographic factors (maternal age, parity, marital status, socioeconomic status, ethnic group) were primarily associated with SGA births.
    • Reproductive history variables (maternal age, parity, marital status, prior pregnancy outcomes, infant sex) were more strongly linked to preterm births.
    • A late first antenatal visit (after 12 weeks) showed a small but significant association with both SGA and preterm births.

    Conclusions:

    • Maternal demographic characteristics play a significant role in SGA births.
    • Reproductive history is a key determinant for preterm births.
    • Timely antenatal care initiation is important for mitigating risks of both SGA and preterm births.