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. 2017 Nov 3;2017(11):CD005661. doi: 10.1002/14651858.CD005661.pub2

Summary of findings 3. Continuous versus interrupted closure for laparotomy incisions.

Continuous versus interrupted closure for laparotomy incisions
Patient or population: patients undergoing a laparotomy incision
 Setting: community and hospital‐based, outpatient and inpatient, worldwide
 Intervention: continuous closure
 Comparison: interrupted closure
Outcomes Anticipated absolute effects* (95% CI) Relative effect
 (95% CI) № of participants
 (studies) Quality of the evidence
 (GRADE)
Risk with interrupted closure Risk with continuous closure
Incisional hernia
 follow‐up: 1 year Study population RR 1.01
 (0.76 to 1.35) 3854
 (11 RCTs) ⊕⊕⊕⊝
 Moderate1
95 per 1000 95 per 1000
 (72 to 128)
Wound infection at last follow‐up Study population RR 1.13
 (0.96 to 1.34) 10,039
 (23 RCTs) ⊕⊕⊕⊝
 Moderate1
86 per 1000 97 per 1000
 (83 to 116)
Wound dehiscence at last follow‐up Study population RR 1.21
 (0.90 to 1.64) 9228
 (21 RCTs) ⊕⊕⊕⊝
 Moderate1
24 per 1000 29 per 1000
 (22 to 40)
Sinus or fistula formation at last follow‐up Study population RR 1.51
 (0.64 to 3.61) 5082
 (10 RCTs) ⊕⊝⊝⊝
 Very low1, 2,3
24 per 1000 37 per 1000
 (16 to 88)
*The risk in the intervention group (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
 CI: confidence interval; RCT: randomised controlled trial; 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

1Downgraded one level for serious risk of bias (includes at least one study with overall high risk of bias).
 2Downgraded one level for inconsistency (I2 = 57%).
 3Downgraded one level for imprecision (overlapping no effect).