NATSALNational Survey of Sexual Attitudes and Lifestyles (UK)
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1] Nonstandard abbreviations: LC-MS/MS, liquid chromatography-tandem mass spectrometry; NATSAL, National Survey of Sexual Attitudes and Lifestyles; Sal-T, salivary testosterone; FT, free testosterone; UPLC, Ultra Performance Liquid Chromatography.
6) In the first NATSAL (conducted in 1990), 70% of men and 65% of women aged 16-44 reported oral-genital contact with a partner of the opposite sex during the previous 12 months; in the second NATSAL (carried out in 2000), the proportions were 78% and 77%, respectively.
The 1990 NATSAL data show that 47% and 46% of young men and women aged 16-19, respectively, had ever engaged in cunnilingus; 47% and 44%, respectively, had engaged in fellatio.