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Methodological quality summary: review authors' judgements about each methodological quality item for each included study. Please note the number of included studies.
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Figure 1

Methodological quality summary: review authors' judgements about each methodological quality item for each included study. Please note the number of included studies.

Comparison 1 Mortality, Outcome 1 Mortality.
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Analysis 1.1

Comparison 1 Mortality, Outcome 1 Mortality.

Comparison 2 Glasgow Outcome Score, Outcome 1 Magnesium versus control.
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Analysis 2.1

Comparison 2 Glasgow Outcome Score, Outcome 1 Magnesium versus control.

Comparison 1. Mortality

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Mortality Show forest plot

2

499

Risk Ratio (M‐H, Fixed, 95% CI)

1.48 [1.00, 2.19]

Figuras y tablas -
Comparison 1. Mortality
Comparison 2. Glasgow Outcome Score

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Magnesium versus control Show forest plot

4

536

Mean Difference (IV, Fixed, 95% CI)

0.02 [‐0.38, 0.41]

Figuras y tablas -
Comparison 2. Glasgow Outcome Score