Each trial involved different catheters and different populations,
and thus precluded meta-analysis.
• Nakada 1996* compared a silver impregnated catheter
(Silver Lubricath Foley) with a silicone coated catheter. This
study used a cross-over design, with participants changing to the
alternative catheter every two weeks. Data were reported for UTI
rate, leakage of urine, urethral pain, residual urine sensation,
pain on removing the catheter and degree of urinary turbidity.
• Bergqvist 1979 randomised participants to a PVC catheter
group, latex catheter group and silicone catheter group. The
outcomes of interest were the numbers of bacteriuria,
complications and encrustation of the catheter surface, and
frequency of catheter changes.
• Bull 1991 randomised participants to a hydrophilic
polymer (hydrogel) coated latex catheter and silicone (silicone
elastomer) coated urethral catheter. The outcomes of interest
were the time the catheters remained in situ without
encrustation, incidence of encrustation, and comfort of catheter.
Each trial involved different catheters and different populations,
and thus precluded meta-analysis.
• Nakada 1996* compared a silver impregnated catheter
(Silver Lubricath Foley) with a silicone coated catheter. This
study used a cross-over design, with participants changing to the
alternative catheter every two weeks. Data were reported for UTI
rate, leakage of urine, urethral pain, residual urine sensation,
pain on removing the catheter and degree of urinary turbidity.
• Bergqvist 1979 randomised participants to a PVC catheter
group, latex catheter group and silicone catheter group. The
outcomes of interest were the numbers of bacteriuria,
complications and encrustation of the catheter surface, and
frequency of catheter changes.
• Bull 1991 randomised participants to a hydrophilic
polymer (hydrogel) coated latex catheter and silicone (silicone
elastomer) coated urethral catheter. The outcomes of interest
were the time the catheters remained in situ without
encrustation, incidence of encrustation, and comfort of catheter.
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