Table 1.

Overview of study characteristics

Countries where the studies were conducted	Studies, n (%)
Australia	3 (9)
Austria	1 (3)
Canada	4 (11)
Italy	1 (3)
Netherlands	1 (3)
Spain	1 (3)
Switzerland	1 (3)
USA	23 (66)
Total	35 (100)
Type of diagnostic test	Assessments, n (%)
Imaging	96 (81)
Cardiac test	14 (12)
Combination	14 (12)
Endoscopy	11 (9)
Scan	34 (29)
Ultrasound	6 (5)
X-ray	17 (14)
Other diagnostic tests	22 (19)
Laboratory tests	19 (16)
Electroencephalography	3 (3)
Total	118 (100)
Type of assessment lens used	Assessments, n (%)
Patient indication	67 (57)
Patient population	24 (20)
Service	27 (23)
Total	118 (100)