age.at.first.intercourse

age.at.first.intercourse (in Sexual History)

Variable Summary	Undergrad	Freshman	Sophomore	Junior	Senior
Sexually active students:	Undergrad	Freshman	Sophomore	Junior	Senior
Casual-sexually active students:	Undergrad	Freshman	Sophomore	Junior	Senior

students (age_at_first_intercourse)

All Rs Female Male

Not applicable 732 21.81% 479 20.43% 253 25.17%

12 or younger 13 0.39% 11 0.47% 2 0.20%

13 34 1.01% 18 0.77% 16 1.59%

14 89 2.65% 66 2.81% 23 2.29%

15 273 8.13% 207 8.83% 66 6.57%

16 440 13.11% 327 13.94% 113 11.24%

17 471 14.03% 308 13.13% 160 15.92%

18 583 17.37% 417 17.78% 166 16.52%

19 312 9.29% 225 9.59% 86 8.56%

20 251 7.48% 176 7.51% 74 7.36%

21 142 4.23% 99 4.22% 41 4.08%

22 17 0.51% 12 0.51% 5 0.50%

23 0 0.00% 0 0.00% 0 0.00%

Missing 0
(0.00%) – 0
(0.00%) – 0
(0.00%) –

Total 3357 100% 2345 100% 1005 100%

These tables reflect only undergraduates attending 4-year colleges who are of normative age -- 18, 19, 20, 21, or 22, +/- 1, for freshman, sophomores, juniors, and seniors, respectively.

students (age_at_first_intercourse)
	All Rs		Female		Male
Not applicable	732	21.81%	479	20.43%	253	25.17%
12 or younger	13	0.39%	11	0.47%	2	0.20%
13	34	1.01%	18	0.77%	16	1.59%
14	89	2.65%	66	2.81%	23	2.29%
15	273	8.13%	207	8.83%	66	6.57%
16	440	13.11%	327	13.94%	113	11.24%
17	471	14.03%	308	13.13%	160	15.92%
18	583	17.37%	417	17.78%	166	16.52%
19	312	9.29%	225	9.59%	86	8.56%
20	251	7.48%	176	7.51%	74	7.36%
21	142	4.23%	99	4.22%	41	4.08%
22	17	0.51%	12	0.51%	5	0.50%
23	0	0.00%	0	0.00%	0	0.00%
Missing	0 (0.00%)	–	0 (0.00%)	–	0 (0.00%)	–
Total	3357	100%	2345	100%	1005	100%