Fig. 7From: Non anti-coagulant factors associated with filter life in continuous renal replacement therapy (CRRT): a systematic review and meta-analysisCatheter type. Arrowgard Blue denotes a group comprising 16Â cm or 20Â cm 12Fr or 25Â cm 14Fr polyurethane antimicrobial treated catheters. Niagara when not specified denotes a group comprising 15Â cm, 20Â cm or 24Â cm 13.5Fr polyurethane catheters. HR denotes reanalysis of the original data by Cox proportional hazards modelBack to article page