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Bacterial Ocular Infections in Iran: A Systematic Review and Meta-analysis
Milad Shahini Shams Abadi1, Mohammad-Hassan Arjmand2, Farshad Kakian3
1Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Objectives:
Eye infections can be caused by several microorganisms and the most common causative bacterial agents are staphylococci, streptococci, and Pseudomonas aeruginosa. This study aimed to estimate the prevalence of Staphylococcus aureus, Staphylococcus epidermidis, viridans group streptococci, and P. aeruginosa as the cause of ocular infections in Iran.
Methods:
We conducted a systematic search on the studies published by Iranian authors from January 2000 to December 2020 in Web of Science, PubMed, Scopus, and Embase. Eligible studies were selected according to the defined inclusion/exclusion criteria. Statistical heterogeneity between and within groups was estimated by the Q-statistic and I2 index. The funnel plots, Duval and Tweedie trim, and fill methods were obtained to evaluate the evidence of publication bias.
Results:
Twenty-seven studies were included in this review. According to the meta-analysis results, the prevalence of S.epidermidis was 19.1% (95% CI: 12.5-28.1). It was estimated 6.9% (95% CI: 4.4-10.6), 6.7% (95% CI: 4.6-9.6), and 3.3% (95% CI: 1.8-5.8) for P.aeruginosa, S. aureus, and viridans streptococci, respectively.
Conclusions:
S. epidermidis is the prevalent bacterial agents responsible for eye-associated infections in Iran.
Insights
Staphylococcus epidermidis is the most common bacterial cause of eye infections in Iran, found in 19.1% of cases. Other prevalent bacteria include Pseudomonas aeruginosa, Staphylococcus aureus, and viridans streptococci.
Area of Science:
- Ophthalmology
- Microbiology
- Public Health
Background:
- Eye infections are a significant health concern globally.
- Common bacterial culprits include staphylococci, streptococci, and Pseudomonas aeruginosa.
Purpose of the Study:
- To determine the prevalence of specific bacterial pathogens causing ocular infections in Iran.
- To analyze the frequency of Staphylococcus aureus, Staphylococcus epidermidis, viridans group streptococci, and Pseudomonas aeruginosa.
Main Methods:
- A systematic literature search was performed on major scientific databases (Web of Science, PubMed, Scopus, Embase).
- Studies published by Iranian authors between January 2000 and December 2020 were included.
- Meta-analysis was employed to synthesize prevalence data and assess publication bias.
Main Results:
- Twenty-seven studies were included in the meta-analysis.
- The prevalence of Staphylococcus epidermidis was 19.1% (95% CI: 12.5-28.1).
- Prevalence estimates were 6.9% for Pseudomonas aeruginosa, 6.7% for Staphylococcus aureus, and 3.3% for viridans streptococci.
Conclusions:
- Staphylococcus epidermidis is the predominant bacterial agent responsible for eye infections in Iran.
- Understanding the prevalence of these pathogens is crucial for effective treatment and prevention strategies.
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