Research Article
Coagulation Parameters and Risk of Progressive Hemorrhagic Injury after Traumatic Brain Injury: A Systematic Review and Meta-Analysis
Table 3
Quality scores of case-control studies using Newcastle-Ottawa Scale (maximum score of 9).
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Reference | Selection | Comparability | Outcome | Adequate definition of cases | Representativeness of cases | Selection of controls | Definition of controls | Comparability on the basis of the design or analysis | Assessment of exposure | Same method of ascertainment for cases and controls | Nonresponse rate (<20%) | Overall |
| Oertel et al., 2002 [8] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 7 | Sun et al., 2011 [12] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 7 | Tong et al., 2012 [10] | 1 | 1 | 0 | 1 | 2 | 1 | 1 | 1 | 8 | Yuan et al., 2012 [11] | 1 | 1 | 0 | 1 | 2 | 1 | 1 | 1 | 8 | Tian et al., 2010 [9] | 1 | 1 | 0 | 1 | 2 | 1 | 1 | 1 | 8 | White et al., 2009 [13] | 1 | 1 | 0 | 1 | 2 | 1 | 1 | 1 | 8 |
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0 = “no,” “unable to determine,” or “not available.”
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