Table 3.

Comparison of the average task time for all participants.

Tasks	Original modules (task time in seconds), mean (SD)	Redesigned modules (task time in seconds), mean (SD)	Time difference, seconds (%)	Statistics
				W value	Z value	P value
Task 1: schedule a medication alert	110.5 (36.5)	68.9 (23.1)	−41.7 (−37.7)	3	−4.2	<.001
Task 2: modify a medication alert	39.6 (15.2)	25.1 (11.1)	−14.5 (−36.5)	24	−3.6	<.001
Task 3: respond to a medication alert	4.2 (3.1)	4.3 (2.9)	0.1 (1.8)	144	−0.2	.85
Task 4: schedule skin check	25.3 (11.2)	16.7 (6.6)	−8.5 (−33.7)	17	−3.8	<.001
Task 5: modify a skincare alert	21.8 (9.4)	16.5 (9.5)	−5.3 (−24.4)	56	–2.7	.007
Task 6: report a new skin problem	81.2 (17.8)	48.5 (12.0)	−32.7 (−40.2)	1	−4.3	<.001
Task 7: track the changes of a skin issue	56.0 (15.2)	38.8 (11.0)	−17.2 (−30.6)	9	−4.0	<.001