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Cochrane Database of Systematic Reviews Protocol - Intervention

Multidisciplinary rehabilitation for follow‐up after primary brain tumour treatment

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Table 1. Levels of quality of individual studies

Judgement of risk of bias

Quality rating of study

Risk of bias of all domains low

High methodological quality = ‘high‐quality study’

Unclear or high risk of bias for one or more domains

Low methodological quality = ‘low‐quality study’

High risk of bias for most domains

Very low methodological quality = ‘very low‐quality study’

Figures and Tables -
Table 1. Levels of quality of individual studies
Table 2. Levels of evidence quality using the GRADE approach

Underlying methodology

Quality rating

Randomised trials or double‐upgraded observational studies

High

Downgraded randomised trials or upgraded observational studies

Moderate

Double‐downgraded randomised trials or observational studies

Low

Triple‐downgraded randomised trials or downgraded observational studies or case series/case reports

Very low

Figures and Tables -
Table 2. Levels of evidence quality using the GRADE approach