Table 1 |
|||||||
| Quality features of 5 studies of RCTs assessed in the meta-analysis | |||||||
| Study | Year | Design | Reporting of randomization | Generation of random sequence | Completeness of follow-up | Description of withdrawals | Quality score |
| Bert et al. [19] | 2001 | NS | Y | Table of random numbers | Y | Y | 4 |
| Cook et al. [22] | 2009 | DB | Y | NA | Y | Y | 4 |
| Forlani et al. [20] | 2002 | NS | Y | computer-generated random code | Y | Y | 4 |
| Geertman et al. [21] | 2004 | DB | Y | NA | Y | Y | 4 |
| Solomon et al. [23] | 2000 | NS | Y | NA | Y | Y | 3 |
DB: double-blind; NS: blinding characteristics of study not specified; NA: unable to assess; RCTs: randomized controlled trials; Y: yes.
Wu et al. BMC Cardiovascular Disorders 2013 13:5 doi:10.1186/1471-2261-13-5
