Table 4.

Experience of annotators

Study	Level of experience of annotators
Blum et al. [32]	Not mentioned
Bodenstedt et al. [19]	Not mentioned
Bodenstedt et al. [20]	Not mentioned
Cheng et al. [13]	surgeons
Derathé et al. [16]	Surgeons and scientists
Dergachyova et al. [21]	Not mentioned
Guedon et al. [31]	Instructed students and author
	Instructed students and author
Hashimoto et al. [14]	surgeons
Huaulmé et al. [18]	Scientist
Jalal et al. [56]	Not mentioned
Jin et al. [22]	Not mentioned
Katic et al. [37]	Not mentioned
Khan et al. [11]	surgeons
Kitugachi et al. [12]	surgeons
Kitugachi et al. [29]	Not mentioned
Pangal et al. [55]	Not mentioned
Lalys et al. [39]	Not mentioned
Lalys et al. [40]	Surgeon
Lecuyer et al. [23]	Surgeon
	Surgeon 1
Malpani et al. [30]	Not mentioned
Mascagani et al. [38]	Not mentioned
Mascagani et al. [41]	Not mentioned
Meuwssen et al. [28]	Not mentioned
Nespolo et al. [17]	surgeons
Guerin et al. [56]	Not mentioned
Quellec et al. [33]	surgeons
Ramesh et al. [24]	Not mentioned
Shi et al. [25]	Not mentioned
	Not mentioned
Twinanda et al. [26]	Not mentioned
	Not mentioned
Twinanda et al. [27]	Not mentioned
	Not mentioned
Yeh et al. [15]	Non-clinical researcher
Yu et al. [42]	Physicians and trained annotators
Zhang et al. [35]	surgeons
Zhang et al. [34]	Not mentioned