Table 2.

Perceived difficulty in using the mobile app and Usefulness, Satisfaction, and Ease of Use (USE) questionnaire score and subfactor scores (n=40).

Factor	Scores, mean (SD)
PDa	2.53 (1.28)
Usefulness	2.90 (0.51)
EOUb	2.01 (0.86)
EOLc	1.85 (0.72)
SATISd	2.56 (0.68)
Total USE score	2.33 (0.56)

^aPD: perceived difficulty in using the mobile app.

^bEOU: ease of use.

^cEOL: ease of learning.

^dSATIS: satisfaction.