Table 1 Risk of bias summary: review authors’ judgements about each risk of bias item for each included study
From: Should we abandon regional anesthesia in open inguinal hernia repair in adults?
Publication year | Author | Randomization | Allocation | Blinding of patients and medical personnel | Blinding of outcome assessment | Incomplete outcome data | Selective reporting | Other bias |
|---|---|---|---|---|---|---|---|---|
1981 | Godfrey | 1 | 1 | 1 | 1 | 3 | 3 | 2 |
1990 | Tverskoy | 3 | 1 | 3 | 1 | 3 | 3 | 3 |
1993 | Merhav | 3 | 3 | 1 | 1 | 1 | 3 | 2 |
2002 | Ozgun | 3 | 1 | 1 | 1 | 3 | 3 | 3 |
2004 | Burney | 3 | 3 | 1 | 1 | 1 | 3 | 3 |
2007 | Srivastava | 1 | 1 | 1 | 1 | 3 | 3 | 3 |
2009 | Varshney | 1 | 1 | 1 | 1 | 1 | 3 | 3 |