четверг, 3 мая 2012 г.

who had never had sex



TABLE. Percentage of females aged 15–19 years who had never had sex (defined as vaginal intercourse), by race/ethnicity and age group — National Survey of Family Growth, United States, 1995, 2002, and 2006–2010
Characteristic
1995
2002
2006–2010
Change (1995 to 2006–2010)
%
(95% CI)
%
(95% CI)
%
(95% CI)
%
Total
48.9
(46.1–51.8)
53.2
(49.7–56.8)
56.7
(46.8–66.6)
16*
Race/Ethnicity
White, non-Hispanic
50.0
(46.4–53.5)
53.6
(48.5–58.6)
57.6
(46.0–69.2)
15*
Black, non-Hispanic
40.0
(34.0–46.1)
43.0
(37.2–48.9)
53.6
(48.0–59.2)
34*
Hispanic
43.5
(35.5–51.4)
59.6
(52.4–66.7)
56.2
(47.2–65.3)
29*
Age group (yrs)
15–17
61.4
(57.9–64.9)
69.7
(65.6–73.7)
72.9
(63.6–82.2)
19*
18–19
28.9
(25.1–32.6)
29.4
(24.6–34.3)
36.5
(24.3–48.7)
26
Abbreviation: CI = confidence interval.
* Trend is statistically significant at p<0.05.

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