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[The incidence of low birth weight infant in north China]
Insights
The study found a 5.00% low birth weight (LBW) infant incidence in North China. Male preterm births and female small for gestational age (SGA) term births were more common, with higher LBW rates in specific regions.
Area of Science:
- Neonatal Health
- Pediatric Epidemiology
- Public Health Research
Context:
- Investigated the incidence of low birth weight (LBW) infants across 8 regions in North China from September 1989 to August 1990.
- Included a cohort of 29,941 infants, with 1,348 identified as LBW, encompassing preterm and small for gestational age (SGA) categories.
Purpose:
- To determine the overall incidence of LBW infants in North China.
- To analyze the incidence rates of preterm and SGA infants by sex.
- To identify regional variations in LBW incidence.
Summary:
- The overall LBW infant incidence was 5.00%.
- Male preterm birth incidence (3.15%) exceeded female preterm birth incidence (2.39%).
- Female SGA term infant incidence (2.46%) was higher than male SGA term infant incidence (1.82%).
- 52.09% of infants with birth weight < 2,500g were SGA term.
- Premature infants at 35-36 weeks gestation constituted 61.78%, and LBW infants weighing 1,500-2,499g represented 93.28%.
- The incidence of SGA preterm infants (gestational age < 37 weeks) was 17.8%.
Impact:
- Identified significant regional disparities, with higher LBW infant incidence observed in Changchun and Huhehot.
- Provides crucial epidemiological data on LBW determinants and prevalence in the studied North China population.
- Highlights the need for targeted interventions in high-incidence areas to improve neonatal outcomes.
Abstract:
From September 1989 to August 1990, the incidence of low birth weight (LBW) infant was studied collaboratively in 8 areas in north China. 29,941 infants (14,003 males and 12,938 females) were investigated, 1,348 LBW infants included those of preterm and small for gestational age (SGA) term. The incidence of LBW infant was 5.00%. The incidence of male preterm (3.15%) was higher than that of female preterm (2.39%). The incidence of female SGA term (2.46%) was higher than that of male SGA term (1.82%). 52.09% of the infants with birth weight (BW) < 2,500g was of SGA term. 35-36 weeks premature infants accounted for 61.78% and 1,500-2,499g LBW infants for 93.28%. The incidence of SGA preterm (GA < 37 weeks) was 17.8%. In this study, the incidence of LBW infant was higher in Changchun and Huhehot than in other areas.