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Methodological quality summary: review authors' judgements about each methodological quality item for each included study.
Figuras y tablas -
Figure 1

Methodological quality summary: review authors' judgements about each methodological quality item for each included study.

Methodological quality graph: review authors' judgements about each methodological quality item presented as percentages across all included studies.
Figuras y tablas -
Figure 2

Methodological quality graph: review authors' judgements about each methodological quality item presented as percentages across all included studies.

Comparison 1 Pronation versus supination, Outcome 1 Failure: second attempt required.
Figuras y tablas -
Analysis 1.1

Comparison 1 Pronation versus supination, Outcome 1 Failure: second attempt required.

Comparison 1. Pronation versus supination

Outcome or subgroup title

No. of studies

No. of participants

Statistical method

Effect size

1 Failure: second attempt required Show forest plot

3

292

Risk Ratio (M‐H, Fixed, 95% CI)

0.53 [0.32, 0.87]

Figuras y tablas -
Comparison 1. Pronation versus supination