. 2021 Mar 3;9(3):e18607. doi: 10.2196/18607

Table 2.

Descriptive statistics for sex difference in responses to USE questionnaire on the medical chatbot via KakaoTalk (N=15).

Sex	Usability subfactors^a, mean (SD)
Sex	USE^b	EOU^c	EOL^d	SAT^e	Total
Men (n=2)	5.43 (1.21)	6.05 (0.96)	7.00 (0.00)	5.57 (2.02)	6.01 (2.02)
Women (n=13)	4.78 (1.12)	5.23 (0.67)	6.25 (0.71)	4.80 (1.20)	5.27 (0.82)
Total (N=15)	4.87 (1.11)	5.34 (0.73)	6.35 (0.71)	4.90 (1.26)	5.37 (0.85)

^aUsability was measured by the average score of 4 subfactors, which is presented as the “Total” score in this table. All scales were rated from 1 (strongly disagree) to 7 (strongly agree).

^bUSE: usefulness.

^cEOU: ease of use.

^dEOL: ease of learning.

^eSAT: satisfaction.