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Birth weight and lung functions in male adolescents
Kamal Jindal1, Farah Khaliq, Piyush Gupta
1Department of Physiology, University College of Medical Sciences, Dilshad Garden, Delhi - 110 095. kamalucms@gmail.com
Insights
This study found no significant link between birth weight and adolescent lung function. While low birth weight children had slightly lower forced vital capacity, it may stem from infant factors, not prenatal ones.
Area of Science:
- Pediatric Pulmonology
- Developmental Pediatrics
- Public Health
Background:
- Birth weight is a critical indicator of fetal development.
- Early life factors may influence long-term health outcomes, including respiratory health.
- The Barker Hypothesis suggests intrauterine conditions impact adult disease risk.
Purpose of the Study:
- To investigate the association between birth weight and lung function in adolescent males.
- To determine if low birth weight (LBW) impacts adolescent lung capacity.
- To evaluate the relevance of the Barker Hypothesis in this cohort.
Main Methods:
- Retrospective cohort study of 70 adolescent males (12-16 years).
- Subjects selected based on available birth records from nursing homes.
- Lung function measured using a portable spirometer (DATOSPIR 120 B).
Main Results:
- Forced vital capacity (FVC) was not significantly different between low birth weight and normal birth weight groups.
- A trend towards lower mean FVC was observed in the LBW group (-0.19 ml).
- No significant associations were found between birth weight and other lung function parameters.
Conclusions:
- Birth weight at term did not show a significant association with adolescent lung function in this cohort.
- Observed differences in FVC may be related to postnatal factors rather than intrauterine programming.
- The findings do not support the Barker Hypothesis regarding intrauterine influences on adult disease risk.
Abstract:
The aim of this comparative retrospective cohort study was to examine the associations between birth weight and lung function in cohort of 70 adolescent male children aged 12-16 years. The subjects, born in nursing homes located in vicinity of the institution having their complete birth records were traced. They were male children between ages of 12-16 years. Lung function parameters were measured using a portable spirometer DATOSPIR 120 B. The corrected mean difference (95% confidence interval) in forced vital capacity (FVC) was -0.19 ml (-0.55 to 0.16) this was significantly lower in low birth weight group (LBW) as compared to normal birth weight children. All other lung function parameters were not significantly different in the two groups. We did not find a significant association between birth weight at term and lung function parameters in the adolescent age group. While mean FVC which was found to be lower in LBW group in our study might be due to programming in infancy rather than intrauterine life. Our results did not support Barker Hypothesis according to which adverse influences during intrauterine life result in increased disease risk in adulthood.
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