From: Effects of Ginkgo biloba in dementia: systematic review and meta-analysis
Study Authors, date | Randomization/allocation concealment | Blinding of patients/outcomes assessment | Prior estimate of sample size | Withdrawals per group reported | ITT analysis adequate | Report of measures of precision | Data inconsistencies | Funding reported |
---|---|---|---|---|---|---|---|---|
Yes/yes | Yes/yes | Partlya | Partlyb | Yes | Yes | No | No | |
Yes/yes | Yes/unclear | Yes | Yes | Yes | Yes | No | Yes | |
Maurer et al. 1997 [31] | Yes/unclear | Yes/unclear | No | Yes | No | No | No | No |
Yes/yes | Yes/yes | Yes | Yes | No | Yes | Yesc | Yes | |
Schneider et al. 2005 [33] | Yes/yes | Yes/yes | Yes | Yes | Yes | Yes | No | Yes |
Yancheva et al 2009 [35] | Yes/unclear | Yes/unclear | No | Yes | Yes | Yes | Yes | Yes |
Napryeyenko et al. 2007 [32] | Yes/unclear | Yes/unclear | Yes | Yes | Yes | Yes | No | Yes |
McCarney et al. 2008 [2] | Yes/yes | Yes/yes | Partlya | Yes | Yes | Yes | No | Yes |
Ihl et al. 2009 | Yes/yes | Yes/yes | No | Yes | Yes | Yes | No | Yes |