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Faculty Experts

Randall Sell, ScD

Associate Professor, Department of Community Health and Prevention; Director, Program for LGBT Health

School of Public Health



public health



Sell was one of the first to estimate the prevalence of lesbians, gays and bisexuals in a probability sample of the United States, United Kingdom and France. His work critically examines the variables used to measure health disparities.

Sell is a collaborator on a federally funded scientific study of social diffusion in online media for reaching hidden communities. He is also the lead investigator for a study of social networks as a means to sample gay men and collect health information. He has researched and published on the history and best practices of sampling homosexuality and has created an assessment of sexual orientation (the Sell Scale). He serves as a consultant to an ever-increasing number of surveys and programs that have begun to collect sexual orientation data. Sell also established the website

Sell directs Drexel's certificate program in LGBT Health.

More information about Sell

For news media inquiries, contact Greg Richter at or 215.895.2614.

In the News

  • LGBT+ Victims of Coronavirus Should Be Counted in Health Data, U.S. Lawmakers

    Randall Sell, ScD, a professor in the Dornsife School of Public Health, was quoted in an April 30 Reuters article about state lawmakers urging U.S. officials on Thursday to determine how many coronavirus patients are LGBT+, saying the data could be critical to the health of the gay and transgender community amid the pandemic.

  • Populations Who dare Not Speak Their Names

    Randall Sell, ScD, an associate professor in the Dornsife School of Public Health, penned an op-ed that ran on Jan. 31 in the Philadelphia Gay News about the need for researchers to stop being forced to mask health research on LGBTI populations.

  • Federal ‘Conscience Protection’ Office Concerns LGBT Advocates

    Randall Sell, ScD, assistant professor in the Dornsife School of Public Health, was quoted in a Jan. 25 Philadelphia Gay News article on what "conscience protection" offices signal to the LGBT community.

  • Study shows just 0.1 percent of NIH funding went to LGBT research

    Randall Sell, ScD, an associate professor in the School of Public Health, was quoted in a Pittsburgh City Paper article on Dec. 13 about the low proportion of NIH research funding that goes to study of LGBT health issues.

  • New Drexel program offers certificate in LGBT health

    Dr. Randall Sell, an associate professor and director of the LGBT Health program in the School of Public Health, and Robin Cameron, an adjunct instructor in the program, were featured in a Philadelphia Inquirer story on March 25 about health disparities in the LGBT community and Drexel’s new online certificate program. School of Public Health students Lauren Orsini, Tosin Seriki and Allison Baker were also quoted.

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