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. 2018 Jan 29;2018(1):CD011455. doi: 10.1002/14651858.CD011455.pub2

Summary of findings for the main comparison. Early versus late ureteric stent removal after kidney transplantation.

Early versus late ureteric stent removal after kidney transplantation
Patient or population: kidney transplant recipients
 Intervention: early ureteric stent removal
 Comparison: late ureteric stent removal
Outcomes Anticipated absolute effects* (95% CI) Relative effect
 (95% CI) No. of participants
 (studies) Quality of the evidence
 (GRADE)
Risk with late removal Risk with early removal
Major urological complications: all stents
 follow‐up range: 3 to 12 months Study population RR 1.87
 (0.61 to 5.71) 1127 (5) ⊕⊕⊕⊕
 LOW 1
12 per 1,000 23 per 1,000
 (7 to 69)
Major urological complications: bladder indwelling stents
 follow‐up range: 3 months to 12 months Study population RR 1.67
 (0.52 to 5.36) 539 (3) ⊕⊕⊕⊕
 LOW 1
15 per 1,000 24 per 1,000
 (8 to 79)
Major urological complications: per‐urethral stents
 follow‐up range: 3 months to 12 months Study population RR 1.51
 (0.03 to 74.45) 588 (2) ⊕⊕⊕⊕
 LOW 1
10 per 1,000 15 per 1,000
 (0 to 732)
Urinary tract infection: all stents Study population RR 0.49
 (0.30 to 0.81) 1126 (5) ⊕⊕⊕⊝
 MODERATE 1 2
185 per 1,000 91 per 1,000
 (56 to 150)
Urinary tract infection: bladder indwelling stents Study population RR 0.45
 (0.29 to 0.70) 539 (3) ⊕⊕⊕⊝
 MODERATE 1 2
209 per 1,000 94 per 1,000
 (61 to 146)
Urinary tract infection: per‐urethral stents Study population RR 0.60
 (0.17 to 2.03) 587 (2) ⊕⊕⊝⊝
 LOW 1 2
164 per 1,000 98 per 1,000
 (28 to 333)
*The risk in the intervention group (and its 95% CI) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
 
 CI: Confidence interval; RR: Risk ratio
GRADE Working Group grades of evidenceHigh quality: We are very confident that the true effect lies close to that of the estimate of the effect
 Moderate quality: We are moderately confident in the effect estimate: The true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different
 Low quality: Our confidence in the effect estimate is limited: The true effect may be substantially different from the estimate of the effect
 Very low quality: We have very little confidence in the effect estimate: The true effect is likely to be substantially different from the estimate of effect

1 All studies were unblinded, however, this was unavoidable given the nature of the intervention. The majority of studies provided minimal information on processes of randomisation and allocation

2 Inconsistent definition and variable reporting of urinary tract infection across included studies