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Background: Research demonstrates significant gender- and sexual orientation-based differences in orgasm rates from sexual intercourse; however, this "orgasm gap" has not been studied with respect to age.

Aim: The study sought to examine age-related disparities in orgasm rates from sexual intercourse by gender and sexual orientation.

Methods: A survey sample of 24 752 adults from the United States, ranging in age from 18 to 100 years. Data were collected across 8 cross-sectional surveys between 2015 and 2023.

Outcomes: Participants reported their average rate of orgasm during sexual intercourse, from 0% to 100%.

Results: Orgasm rate was associated with age but with minimal effect size. In all age groups, men reported higher rates of orgasm than did women. Men's orgasm rates ranged from 70% to 85%, while women's ranged from 46% to 58%. Men reported orgasm rates between 22% and 30% higher than women's rates. Sexual orientation impacted orgasm rates by gender but not uniformly across age groups.

Clinical translation: The persistence of the orgasm gap across ages necessitates a tailored approach in clinical practice and education, focusing on inclusive sexual health discussions, addressing the unique challenges of sexual minorities and aging, and emphasizing mutual satisfaction to promote sexual well-being for all.

Strengths and limitations: This study is the first to examine the orgasm gap with respect to age, and does so in a large, diverse sample. Findings are limited by methodology, including single-item assessments of orgasm and a sample of single adults.

Conclusion: This study revealed enduring disparities in orgasm rates from sexual intercourse, likely resulting from many factors, including sociocultural norms and inadequate sex education.