Table 10 Meta-analysis about laparoscopic abdominal lavage

Post-operative mortality at index admission or within 30 days from index intervention

RR 1.33, 95% CI 0.37 to 4.74

RR 3.01, 95% CI 0.48 to 18.93

OR 0.93; 95% C.I. 0.23–3.82; P = 0.92

RR 1.34, 95% CI 0.59–3.04

RR 1.34, 95% CI 0.37 to 4.79

Mortality at 90 days

RR 1.27, 95% CI 0.60 to 2.69

Not performed^j

OR 0.83; 95% C.I. 0.32–2.11; P = 0.69

RR 0.86, 95% CI 0.40–1.83

RR 0.86, 95% CI 0.40 to 1.84

Mortality at 12 months

RR 0.84, 95% CI 0.38 to 1.88

Not performed^j

OR 0.74 P = 0.51

RR 0.54, 95% CI 0.38–0.76

Reoperation at index admission or within 30 days from index intervention

RR 1.93, 95% CI 0.71 to 5.22

RR = 1.40, 95% CI 0.71 to 4.90

OR 3.75, P = 0.006

RR 1.34, 95% CI 0.59–3.04

RR 3.03, 95% CI 1.16 to 7.89

At 90 days follow reoperations

Not analyzed^a

Not performed^j

NR

RR 1.71, 95% CI 0.85–3.43

NR

At 12 months follow reoperations

RR 0.57, 95% CI 0.39 to 0.86

Not performed^j

OR 0.32, P = 0.0004

RR 0.54, 95% CI 0.38–0.76

NR

Intra-abdominal abscesses at index admission or within 30 days from index intervention

Not analyzed^b

Not performed^j

OR 3.50; 95% C.I. 1.79–6.86; P = 0.0003

NR

NR

Intra-abdominal abscesses at 90 days

RR = 2.54, 95% CI 1.34 to 4.83

Not performed^j

NR

NR

NR

Wound infections

RR = 0.10, 95% CI 0.02 to 0.51

Not performed^j

OR 0.14; 95% C.I. 0.04–0.45; P = 0.0009

NR

NR

Morbidity at 90 days

Not performed^j

Not performed^j

OR 1.70; 95% C.I. 1.00–2.87; P = 0.05

NR

NR

Presence of stoma at 12 months

RR = 0.50, 95% CI 0.14 to 1.75

Not performed^j

OR 0.44 P = 0.27

NR

RR 0.50, 95% CI 0.14 to 1.76

Operating time

Not analyzed^c

Not performed^j

NR

NR

NR

Post-operative persistent peritonitis

Not analyzed^d

Not performed^j

NR

NR

NR

Post-operative secondary peritonitis

Not analyzed^e

Not performed^j

NR

NR

NR

Length of post-operative hospital stay during index admission.

WMD −2.03, 95% CI−2.59 to−1.47

Not performed^j

NR

NR

NR

Adverse events within 90 days by Dindo-Clavien grade I-II

Not analyzed^f

Not performed^j

NR

NR

NR

Adverse events within 90 days by Dindo-Clavien grade IIIa

Not analyzed^g

Not performed^j

NR

NR

NR

Adverse events within 90 days by Dindo-Clavien grade IIIb

RR 1.40, 95% CI 0.47 to 4.17

Not performed^j

NR

RR 1.46, 95% CI 0.99–2.20

NR

Adverse events within 90 days by Dindo-Clavien grade IVa

RR 0.59, 95% CI 0.20 to 1.75

Not performed^j

NR

NR

NR

Adverse events within 90 days by Dindo-Clavien grade IVb

RR 0.62, 95% CI 0.10 to 3.75

Not performed^j

NR

NR

NR

Total length of hospital stays within 12 months.

Not analyzed^h

Not performed^j

NR

NR

NR

Quality of Life

Not analyzedⁱ

Not performed^j

NR

NR

NR

Post-operative ICU admission

NR

NR

NR

NR

RR 0.85, 95% CI 0.40 to 1.78