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. 2020 Oct 8;18:331. doi: 10.1186/s12955-020-01577-9

Table 1.

Demographic information of study participants

Mean age (SD), n = 500 21.23 (2.88)
Gender n (%)
 Male 200 (40.0%)
 Female 300 (60.0%)
Sexual orientation
 Heterosexual 437 (87.4%)
 Bisexual/homosexual/ others 63 (12.6%)
Education level
 Secondary or below 242 (48.4%)
 Tertiary or higher education 200 (40.0%)
 Did not answer 58 (11.6%)
Monthly income
 HKD19,999 or below 364 (72.8%)
 HKD20.000 or above 29 (5.8%)
 Did not answer 107 (21.4%)
Sexual experience
 Yes 390 (78.0%)
 No 110 (22.05)

SD standard deviation