1. Stat #1 (of 4) from this study is the only section on Anal Sex: Washington University in St. Louis – 2019 Sex Survey: Student Life independent newspaper of Washington University in St. Louis February 2019 sex survey of 2,027 students (60% cisgender female, 37% cisgender male, 1% genderqueer, 75% heterosexual, 5% gay, 12% bisexual, 2% asexual, 5% questioning)
2. Stat #1 (of 6) from this study is the only section on Anal Sex: Sexual Diversity in the U.S.: 2015 Sexual Exploration in America Study of 2,021 adults (975 men, 1,046 women) focused on a broad range of sexual behaviors, published on plos.org July 2017
