Table 1.

Demographic, clinical and sexual behavior characteristics in Mexican male college students.

Variable	n	%
Age
18–20 years	111	43.9
≥21 years	142	56.1
Illegal drug consumption
Yes	102	40.3
No	151	59.7
Frequency of alcohol consumptiona
High	46	18.2
Low	207	81.8
Warts on the penis
Yes	55	21.7
No	198	78.3
Previous STIs
Yes	10	4.0
No	243	96.0
Age at sexual debut
≤15 years	66	26.1
≥16 years	187	73.9
Time to knowing first sexual partner
1 day–1 month	92	36.4
≥2 months	161	63.6
Sexual partners during the previous year
≥3	44	17.4
1–2	209	82.6
Frequency of condom use
Always	58	22.9
Not always	195	77.1
Contraceptive pill use during last intercourse
Yes	27	10.7
No	226	89.3
Exchanging sex for money
Yes	10	4.0
No	243	96.0
Intercourse with sexual workers
Yes	28	11.1
No	225	88.9
Same sex partners
Yes	23	9.1
No	230	90.9

^aHigh, once a week-daily. Low, never-3 times a month.