Edwin Yen cited surveys of fifth-year students in Taipei's five-year junior colleges (who are the same age as sophomores at a university). In 1988, 35 % of the boys and only 7 % of the girls were sexually active, whereas by 1998 the number of boys having sexual experiences rose slightly to 37.5 %, but the number of girls with sexual experience almost quadrupled to 26.7 %!
晏涵文以台北市五專五年級生為例，民國七十七年時，男生已有性經驗的比率是百分之三十五，女生只有百分之七。到了民國八十七年，男生只略增至百分之三十七・五，女生卻竄升將近四倍，達到百分之二十六・七！