dates.since.started.college

dates.since.started.college (in Demographics)

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 (dates_since_started_college)

All Rs Female Male

Mean (Std. Dev.) 4.82 (5.73) 4.28 (5.12) 5.98 (6.73)

0 2116 24.70% 1493 25.64% 621 22.78%

1 744 8.68% 581 9.98% 160 5.87%

2 986 11.51% 701 12.04% 281 10.31%

3 824 9.62% 596 10.24% 225 8.25%

4 654 7.63% 462 7.94% 189 6.93%

5 686 8.01% 475 8.16% 211 7.74%

6 419 4.89% 256 4.40% 161 5.91%

7 321 3.75% 209 3.59% 112 4.11%

8 271 3.16% 174 2.99% 97 3.56%

9 130 1.52% 89 1.53% 41 1.50%

10 305 3.56% 175 3.01% 129 4.73%

11 126 1.47% 80 1.37% 46 1.69%

12 114 1.33% 68 1.17% 46 1.69%

13 81 0.95% 47 0.81% 33 1.21%

14 60 0.70% 38 0.65% 22 0.81%

15 200 2.33% 109 1.87% 91 3.34%

16 53 0.62% 37 0.64% 16 0.59%

17 72 0.84% 47 0.81% 25 0.92%

18 67 0.78% 34 0.58% 33 1.21%

19 40 0.47% 17 0.29% 23 0.84%

20 88 1.03% 43 0.74% 45 1.65%

21 25 0.29% 13 0.22% 12 0.44%

22 35 0.41% 14 0.24% 21 0.77%

23 17 0.20% 10 0.17% 7 0.26%

24 2 0.02% 1 0.02% 1 0.04%

25 42 0.49% 25 0.43% 17 0.62%

26 1 0.01% 0 0.00% 1 0.04%

27 3 0.04% 1 0.02% 2 0.07%

28 1 0.01% 1 0.02% 0 0.00%

29 1 0.01% 1 0.02% 0 0.00%

30 83 0.97% 25 0.43% 58 2.13%

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 (dates_since_started_college)
	All Rs		Female		Male
Mean (Std. Dev.)	4.82 (5.73)		4.28 (5.12)		5.98 (6.73)
0	2116	24.70%	1493	25.64%	621	22.78%
1	744	8.68%	581	9.98%	160	5.87%
2	986	11.51%	701	12.04%	281	10.31%
3	824	9.62%	596	10.24%	225	8.25%
4	654	7.63%	462	7.94%	189	6.93%
5	686	8.01%	475	8.16%	211	7.74%
6	419	4.89%	256	4.40%	161	5.91%
7	321	3.75%	209	3.59%	112	4.11%
8	271	3.16%	174	2.99%	97	3.56%
9	130	1.52%	89	1.53%	41	1.50%
10	305	3.56%	175	3.01%	129	4.73%
11	126	1.47%	80	1.37%	46	1.69%
12	114	1.33%	68	1.17%	46	1.69%
13	81	0.95%	47	0.81%	33	1.21%
14	60	0.70%	38	0.65%	22	0.81%
15	200	2.33%	109	1.87%	91	3.34%
16	53	0.62%	37	0.64%	16	0.59%
17	72	0.84%	47	0.81%	25	0.92%
18	67	0.78%	34	0.58%	33	1.21%
19	40	0.47%	17	0.29%	23	0.84%
20	88	1.03%	43	0.74%	45	1.65%
21	25	0.29%	13	0.22%	12	0.44%
22	35	0.41%	14	0.24%	21	0.77%
23	17	0.20%	10	0.17%	7	0.26%
24	2	0.02%	1	0.02%	1	0.04%
25	42	0.49%	25	0.43%	17	0.62%
26	1	0.01%	0	0.00%	1	0.04%
27	3	0.04%	1	0.02%	2	0.07%
28	1	0.01%	1	0.02%	0	0.00%
29	1	0.01%	1	0.02%	0	0.00%
30	83	0.97%	25	0.43%	58	2.13%
Missing	0 (0.00%)	–	0 (0.00%)	–	0 (0.00%)	–
Total	8567	100%	5822	100%	2726	100%