Prevalence of preterm labor in Iran: A systematic review and meta-analysis
Background: Preterm labor, which defines as live-birth delivery before 37 weeks of gestation is a main determinant of neonatal morbidity and mortality around the world. Objective: The aim of this study was to determine the prevalence of preterm labor in Iran by a meta-analysis study, to be as a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Shahid Sadoughi University of Medical Science, Yazd, Iran
2015-12-01
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| Series: | Iranian Journal of Reproductive Medicine |
| Online Access: | http://www.ssu.ac.ir/ijrm/index.php/ijrm/article/view/1768/920 |
| Summary: | Background: Preterm labor, which defines as live-birth delivery before 37 weeks of
gestation is a main determinant of neonatal morbidity and mortality around the
world.
Objective: The aim of this study was to determine the prevalence of preterm labor
in Iran by a meta-analysis study, to be as a final measure for policy makers in this
field.
Materials and Methods: In this meta-analysis, the databases of Thomson database
(Web of Knowledge), PubMed/Medline, Science Direct, Scopus, Google Scholar,
Iranmedex, Scientific Information Database (SID), Magiran, and Medlib were
searched for articles in English and Persian language published between 1995 and
2014. Among the studies with regard to the inclusion and exclusion criteria, 14
studies (out of 1370 publications) were selected. Data were analyzed by using Stata
software version 11. The heterogeneity of reported prevalence among studies was
evaluated by the Chi-square based Q test and I2 statistics.
Results: The results of Chi-square based on Q test and I2 statistics revealed severe
heterogeneity (Q=2505.12, p-value < 0.001 and I2= 99.5%) and consequently, the
random effect model was used for the meta-analysis. Based on the random effect
model, the overall estimated prevalence of preterm in Iran was 9.2% (95% CI: 7.6 –
10.7).
Conclusion: Present study summarized the results of previous studies and provided
a comprehensive view about the preterm delivery in Iran. In order to achieve a more
desirable level and its reduction in the coming years, identifying affecting factor and
interventional and preventive actions seem necessary. |
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| ISSN: | 1680-6433 2008-2177 |