The number of authors in the 58 reviews ranged from 1 to 10, the first authors were most often from China (46 [79%]), followed by UK (n = 8), and Netherlands, Canada, USA and Australia each have one first-authored review. Twenty-one (36%) of the included reviews had at least one TCM practitioner as its co-author. 7 (12%) reviews didn't include any primary study, of the remaining reviews (n = 51), a total of 671 studies and 75,609 participants were included, the median number of studies and participants included were 9 (Quartile: 3, 15) and 936 (Quartile: 492, 1567) respectively. 50% of the reviews were last assessed as up-to-date prior to 2008, of reviews considered out-of-date, one was last updated in 2000. In total, 44 diseases were investigated in the included reviews, 18 (31%) reviews addressed cerebral vascular and cardiovascular diseases (9 reviews focused on stroke), followed by reviews focused on respiratory diseases (n = 6) and gynecological/pregnancy diseases (n = 6).