A Systematic Review and Meta-analysis on the Prevalence of Low Birth Weight Infants in Iran
Maryam Sabbaghchi1, Rostam Jalali2, Masoud Mohammadi2
1Department of Demography, Faculty of Social Sciences, Yazd University, Yazd, Iran.
Insights
The overall prevalence of low birth weight in Iranian infants is 8.5%. Health policymakers must implement strategies to reduce this significant public health concern.
Area of Science:
- Public Health
- Pediatrics
- Neonatology
Background:
- Low birth weight is a critical indicator of infant survival, growth, and mortality.
- Understanding the prevalence of low birth weight is essential for public health interventions.
Purpose of the Study:
- To determine the prevalence of low birth weight in Iranian infants.
- To conduct a systematic review and meta-analysis of existing studies.
Main Methods:
- A meta-analysis was conducted using data from January 2000 to December 2019.
- Studies were identified through comprehensive searches of major scientific databases.
- Data analysis utilized Comprehensive Meta-Analysis software, with heterogeneity assessed using the I-squared index.
Main Results:
- The meta-analysis of 14 articles encompassing 93,924 infants revealed an overall low birth weight prevalence of 8.5% in Iran.
- Significant variations were observed, with the highest prevalence at 19.1% in Hamedan (2007) and the lowest at 4.2% in Tonekabon (2005).
- A statistically significant increase in low birth weight prevalence was associated with larger sample sizes (P < 0.05).
Conclusions:
- The high prevalence of low birth weight in Iranian infants necessitates urgent attention from health policymakers.
- Effective interventions are crucial to mitigate the adverse outcomes associated with low birth weight.
Background:
Low birth weight is a significant index for survival, intrauterine growth, and mortality in infants. Thus, this study is aimed at determining the prevalence of low birth weight in Iranian infants through a systematic review and meta-analysis.
Methods:
This study was performed by meta-analysis from January 2000 to December 2019. The studies relevant to the topic have been obtained through search in databases of Scopus, ScienceDirect, SID, Magiran, Barakat Knowledge Network System, Medline (PubMed), and Google Scholar. Heterogeneity of the studies has been assessed by the I 2 index, and data analysis was done using Comprehensive Meta-Analysis software.
Results:
By investigating 14 articles and 93924 infants, the total prevalence of low birth weight in infants in Iran was achieved at 8.5% (95% CI: 7.3-9.9%) according to the meta-analysis; the most prevalence of low birth weight was in infants in Hamedan at 19.1% (95% CI: 21.2-17.2%) in 2007, and the lowest prevalence of low birth weight was in infants in Tonekabon at 4.2% (95% CI: 3.4-5.2%) in 2005, and also, by increasing the sample size, the prevalence of low birth weight increases, by which the difference is statistically significant (P < 0.05).
Conclusion:
Due to the high prevalence of low birth weight in infants in Iran, health policy-makers must take effective attempts in order to reduce it in infants.
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