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Abstract Background Methicillin-resistant Staphylococcus aureus (MRSA) is a difficult to treat infection, particularly in residents of elderly care centers (ECCs). Despite the substantial burden of MRSA, an inadequate number of studies have analyzed MRSA prevalence in ECCs. Objectives We conducted a worldwide systematic review and meta-analysis on the prevalence and risk factors of MRSA in ECCs. Methods We searched MEDLINE/PubMed, EMBASE, Web of Science, and Scopus databases and the gray literature sources for all studies published between January 1980 and December 2022 on the prevalence of MRSA in ECCs. A random-effects model was utilized to estimate pooled prevalence rates at 95% confidence intervals (CI). Moreover, the data were analyzed based on World Health Organization-defined regions, income, and human development index levels. Results In total, 119 studies, including 164,717 participants from 29 countries, were found eligible for meta-analysis. The pooled global prevalence of MRSA was 14.69% (95% CI 12.39–17.15%; 16,793/164,717). Male gender [prevalence ratio (PR) = 1.55; 95% CI 1.47–1.64], previous MRSA infection (PR = 3.71; 95% CI 3.44–4.01), prior use of antibiotics (PR = 1.97; 95% CI 1.83–2.12), hospitalized within the previous year (PR = 1.32; 95% CI 1.20–1.45), have had any wound (PR = 2.38; 95% CI 2.23–2.55), have used urinary catheter (PR = 2.24; 95% CI 2.06–2.43), have used any medical device (PR = 1.78; 95% CI 1.66–1.91), and those with diabetes (PR = 1.55; CI 1.43–1.67) were more likely to be colonized by MRSA than other patients. Conclusion Screening programs and preventive measures should target MRSA in ECCs due to the high global prevalence rates. |
