|Outcomes||Comparisons||Weighted event rates||RRR (95% CI)||NNT (CI)|
|Silver alloy or silveroxide catheters||SCs|
|*Abbreviations defined in glossary; weighted event rates, RRR, NNT, and CI calculated from data in article using a fixed effects model.|
|Asymptomatic bacteriuria||Silver alloy v SCs at <1 wk||10%||28%||64% (48 to 76)||6 (5 to 9)|
|Silver alloy v SCs at >1 wk||24%||36%||33% (10 to 50)||9 (5 to 25)|
|Silver oxide v SCs||12%||13%||11% (−15 to 32)||Not significant|
|Symptomatic bacteriuria||Silver alloy v SCs||17%||28%||40% (27 to 50)||10 (7 to 15)|
Review: silver alloy catheters are more effective than standard catheters for reducing bacteriuria in adults in hospital having short term catheterisation
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