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 271 3.16% 74 1.27% 195 7.15%

12 or younger 83 0.97% 40 0.69% 43 1.58%

13 171 2.00% 103 1.77% 68 2.49%

14 511 5.96% 380 6.53% 131 4.81%

15 1319 15.40% 986 16.94% 333 12.22%

16 2004 23.39% 1434 24.63% 565 20.73%

17 1848 21.57% 1223 21.01% 619 22.71%

18 1580 18.44% 1045 17.95% 532 19.52%

19 516 6.02% 355 6.10% 159 5.83%

20 197 2.30% 136 2.34% 60 2.20%

21 59 0.69% 41 0.70% 18 0.66%

22 8 0.09% 5 0.09% 3 0.11%

23 0 0.00% 0 0.00% 0 0.00%

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

Total 8567 100% 5822 100% 2726 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	271	3.16%	74	1.27%	195	7.15%
12 or younger	83	0.97%	40	0.69%	43	1.58%
13	171	2.00%	103	1.77%	68	2.49%
14	511	5.96%	380	6.53%	131	4.81%
15	1319	15.40%	986	16.94%	333	12.22%
16	2004	23.39%	1434	24.63%	565	20.73%
17	1848	21.57%	1223	21.01%	619	22.71%
18	1580	18.44%	1045	17.95%	532	19.52%
19	516	6.02%	355	6.10%	159	5.83%
20	197	2.30%	136	2.34%	60	2.20%
21	59	0.69%	41	0.70%	18	0.66%
22	8	0.09%	5	0.09%	3	0.11%
23	0	0.00%	0	0.00%	0	0.00%
Missing	0 (0.00%)	–	0 (0.00%)	–	0 (0.00%)	–
Total	8567	100%	5822	100%	2726	100%