Skip to main content

Table 1 Study selection criteria

From: Red blood cell transfusion and mortality effect in aneurysmal subarachnoid hemorrhage: a systematic review and meta-analysis protocol

Inclusion criteria

Exclusion criteria

1. Study design: interventional or observational

1. Studies of exclusively pediatric population (age <18 years)

2. Included population: hospitalized aSAH patients

2. Non-human studies

3. Included intervention: RBC transfusion

3. Duplicates or ‘sub-cohorts’ of previously published cohorts

4. Comparator: a different transfusion threshold or no transfusion

 

5. Study outcome: any