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Table 5 Rating the Quality of Evidences by GRADE

From: A comparison of early versus late initiation of renal replacement therapy for acute kidney injury in critically ill patients: an updated systematic review and meta-analysis of randomized controlled trials

Outcomes

Studies

No. of Participants

Effect

Quality

Importance

Recommendation grade

Early RRT

Late RRT

RR/RD (95% CI)

Absolute

Overall mortality

9

338/827 (40.9%)

344/809 (42.5%)

RR 0.98 (0.78 to 1.23)

9 fewer per 1000 (from 94 fewer to 98 more)

Ο

Moderate

Critical

Weak

ICU LOS of survivors

4

301

283

-

MD 0.52 lower (2.6 lower to 1.56 higher)

ΟΟ

low

Important

Weak

Hospital LOS of survivors

4

300

282

-

MD 0.46 lower (7.18 lower to 6.25 higher)

ΟΟ

low

Important

Weak

Renal function recovery

7

430/769 (55.9%)

405/747 (54.2%)

RR 1.02 (0.88 to 1.19)

11 more per 1000 (from 65 fewer to 103 more)

ΟΟ

low

Important

Weak

Renal recovery time

2

163

124

-

MD 0.73 higher (2.09 lower to 3.56 higher)

ΟΟ

low

Important

Weak

Duration of RRT

3

316

260

-

MD 1.43 higher (1.75 lower to 4.61 higher)

ΟΟ

low

Important

Weak

RRT dependence

7

19/447 (4.3%)

23/427 (5.4%)

RR 0.76 (0.42 to 1.37)

13 fewer per 1000 (from 31 fewer to 20 more)

ΟΟ

low

Important

Weak

Mechanical ventilation time

3

294

267

-

MD 0.95 lower (3.54 lower to 1.64 higher)

ΟΟ

low

Important

Weak

  1. Abbreviations: RRT renal replacement therapy, ICU intensive care unit, LOS length of stay, GRADE Grading of Recommendations Assessment, Development, and Evaluation, No number, CI confidence interval, RD relative difference, RR risk ratio, MD mean difference