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Table 4 Sexual repertoire in the prior year, for each of the 2009 and 2018 waves of the National Survey of Sexual Health and Relationships

From: Changes in Penile-Vaginal Intercourse Frequency and Sexual Repertoire from 2009 to 2018: Findings from the National Survey of Sexual Health and Behavior

Sexual behavior 2009 2018 Chi-square
More than a year ago or never At least once in the past year More than a year ago or never At least once in the past year
Adolescents (ages 14–17)
Masturbated alone n 355 453 490 320  < .001
% 44.0 56.0 60.5 39.5
Masturbated with a partner n 707 98 757 54  < .001
% 87.8 12.2 93.3 6.7
Gave oral sex n 672 139 745 62  < .001
% 82.8 17.2 92.3 7.7
Received oral sex n 643 168 726 79  < .001
% 79.3 20.8 90.1 9.9
Penile-vaginal intercourse n 642 165 722 90  < .001
% 79.5 20.5 89.0 11.1
Anal intercourse n 773 36 802 14 .001
% 95.6 4.4 98.3 1.7
Adults (ages 18–49)
Masturbated alone n 807 2144 975 2573 .898
% 27.4 72.7 27.5 72.5
Masturbated with a partner n 1708 1238 2356 1201  < .001
% 58.0 42.0 66.2 33.8
Gave oral sex n 1029 1939 1408 2151  < .001
% 34.7 65.3 39.6 60.4
Received oral sex n 977 1990 1345 2216  < .001
% 32.9 67.1 37.8 62.2
Penile-vaginal intercourse n 691 2254 998 2556  < .001
% 23.5 76.5 28.1 71.9
Anal intercourse n 2353 588 2948 636 .020
% 80.0 20.0 82.3 17.8