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Table 1 Summary of included studies

From: Balanced crystalloids versus isotonic saline in critically ill patients: systematic review and meta-analysis

First author

Year

Study design

Follow-up period for outcomes

Reported outcomes

Fluid type

Number of total patients

Young

2015

Multi-center double-blind, cluster randomized, double-crossover trial

90 days after randomizations for all variables

Hospital and ICU mortality, AKI and RRT

Plasma-Lyte

1152

Saline

1110

Verma

2016

Multi-center double-bind randomized controlled trial

AKI during the first 4 days while other outcomes till discharge

Hospital and ICU mortality, AKI and RRT

Plasma-Lyte

33

Saline

34

Semler (SMART trial)

2018

Single center unblinded, cluster randomized, multiple crossover trial

Death at 60 days, AKI after enrollment, RRT at 28 days.

Hospital and ICU mortality, AKI and RRT

LR or Plasma-Lyte

7942

Saline

7860

Semler (SALT trial)

2016

Single-center prospective, open-label, cluster-randomized, multiple crossover trial

Death at 60 days, AKI after enrollment, RRT at 28 days.

Hospital and ICU mortality, AKI and RRT

LR or Plasma-Lyte

520

Saline

454

Young

2014

Single center randomized, double-blind, parallel-group clinical trial

In-hospital mortality at 30 days

Hospital mortality

Plasma-Lyte

22

Saline

24

Ratanarat

2017

Single-center randomized controlled trial

AKI during the first 7 days

AKI and RRT

Balanced

88

Saline

93

  1. AKI acute kidney injury, RRT renal replacement therapy, ICU intensive care unit, LR lactated Ringer’s