1. Stat #4 (of 6) from this study is the only section on Masturbation: Sexuality & Cognitive Status – 62 to 91: Some results from a study to ‘determine patterns and prevalence of sexual behavior, problems, and attitudes in individuals with different cognitive status’ of 1,682 women & 1,514 men 62 to 91 published in the Journal of the American Geriatrics Society September 2018
2. Stats #3, 4 (of 7) from this study are the only sections on Masturbation: India – Millennials & Sex – 2018: Video content platform Vitamin Stree October 2018 online survey among 2,500 individuals (no gender/sex specified) (235 bisexual / 66 gay)
3. Stat #6 (of 6) from this study is the only section on Masturbation: Britain – Women Over 40 & Sex: YOU magazine survey of 2,000 women over 40 conducted by ResearchNow and published on you.co.uk July 2018 (84% straight, 12% bisexual or bi-curious in some way, 4% acted on that curiosity and had some kind of same-sex encounter)
4. Stat #2 (of 3) from this study is the only section on Masturbation: Sexual Diversity & the Pandemic: Anonymous online survey titled “Sex and Relationships in the Time of COVID-19” conducted March 21 & April 14, 2020, consisting of 1,559 adults (71.1% female, 23.4% male, 4.5% nonbinary/other genders, 52.7% heterosexual, 19.5% bisexual, 7.8% queer, 7.3% pansexual, 7% gay/lesbian, 5.7% other sexual identities)
5. Stat #4 (of 10) from this study is the only section on Masturbation: China – University Students & Sex: A China Family Planning Association, Tsinghua University’s Research Center for Public Health, & China Youth Network survey of 54,580 students from 1,764 universities in China published on sixthtone.com May 2020
6. Stat #3 (of 3, Chart #2 Type of Vehicle Hook Up by Generation/Sex) from this study is the only section on Masturbation: Two Charts on Cars & Sex: A driving-tests.org survey of more than 1,000 Americans about their experiences and preferences related to sexual activities in vehicles, updated November 2019