Table 4.

System Usability Scale (SUS) questionnaire results.

	Question 1	Question 2	Question 3	Question 4	Question 5	Question 6	Question 7	Question 8	Question 9	Question 10	SUS score (sum×2.5; maximum 100)
P1	3	3	3	4	4	4	4	4	4	4	92.5
P2	3	3	4	4	3	4	3	4	4	3	87.5
P3	3	2	2	4	3	3	3	2	3	3	70
P4	4	3	3	4	3	3	4	4	3	4	87.5
P5	3	3	3	4	3	2	3	4	3	2	75
P6	3	3	3	4	3	2	3	4	3	4	80
P7	3	1	2	4	3	3	3	4	3	4	75
P8	4	3	3	4	4	4	3	4	4	3	90
P9	3	3	4	4	3	3	4	4	4	3	87.5
P10	4	0	4	0	3	1	4	4	3	3	65
P11	4	3	3	4	3	4	3	4	4	4	90
P12	3	3	3	2	3	3	4	4	4	3	80
P13	4	3	3	3	4	3	4	4	4	4	90
P14	4	3	3	2	3	3	3	4	3	3	77.5
P15	4	3	3	4	4	4	4	4	4	1	87.5
P16	3	3	3	3	3	3	3	2	2	3	70
P17	2	3	3	3	3	3	3	2	3	3	70
Values, mean (SD)	3.35 (0.59)	2.65 (0.84)	3.06 (0.54)	3.35 (1.08)	3.24 (0.42)	3.06 (0.8)	3.41 (0.49)	3.65 (0.76)	3.41 (0.6)	3.18 (0.78)	80.88 (8.57)
Values, median (IQR)	3 (3-4)	3 (3-3)	3 (3-3)	4 (3-4)	3 (3-3)	3 (3-4)	3 (3-4)	4 (4-4)	3 (3-4)	3 (3-4)	80 (75-87.5)