Table 2.

Early sexual experience characteristics of SCC cases by age at diagnosis^*

	22–35 years old n=165		36–53 years old n=168
Characteristic	Frequency2	%	Frequency	%
Age at first intercourse (years)
Mean (standard deviation)	16.0 (2.7)		17.3 (2.7)
Median	16		17
19 or older	16	10	52	31
15–18	118	72	96	57
Less than 15	30	18	19	11
Unknown	1		1
Difference between age at first intercourse and age at SCC diagnosis (years)
4–10	20	12	1	1
11–20	137	83	39	23
21–30	7	4	114	68
31–35	0	0	13	8
Number of sex partners before age 20
None	9	5	26	15
1	43	26	56	33
2 to 4	70	42	69	41
5 to 14	34	21	14	8
15 or more	9	5	3	2

^*SCC= squamous cell cervical cancer

^†Unless otherwise indicated