The Jadad score
is obtained from a possible 5-point scale; high scores indicating high quality, by yes/no answers to question for randomisation and blinding, and one question evaluating the reporting of patient withdrawals and dropouts.
All studies were assigned a Jadad score
of [greater than or equal to]3, while five studies received a score of <4.
Chinese documents with a Jadad score
of three points and above were included.
28] High and low quality of included RCTs were defined as Jadad score
[greater than or equal to]3 and <3, respectively.
Author, Year Jadad Score
N total Intervention Allen et al.
28) The quality of RCTs was rated as 'high' when Jadad score
was > 3; otherwise it was rated as 'low'.
Six out of ten papers achieved a Jadad score
of [greater than or equal to] 3, suggesting they were of reasonable quality.
The mean Jadad score
of the six publication RCTs was 3.
Further stratified analyses from high Jadad score
studies showed that green tea significantly reduced fasting insulin concentrations (-1.
To supplement the Jadad score
, using Verhagen et al.
All were randomised, but varied in study quality with a median Jadad score
the Jadad score
scale or the Risk of Bias table for RCTs (5-8).