This paper presents a descriptive analysis of common data collected across 11 independent studies in the National Research Mentoring Network (NRMN) from 2019 to 2024, focusing on participant demographics and participation in training programs prior to NRMN.

Analyses focused on data from 6,197 survey responses collected primarily at baseline. Descriptive analyses examined participants’ demographic characteristics (gender, combined race/ethnicity, disability, parent/guardian education, and career stage) and participation in training programs prior to NRMN.

The majority of respondents were female (70%). Most respondents identified as White (46%), Black (23%), Asian (18%), and Hispanic (17%). Most respondents (91%) did not report a disability. In terms of career stage, 55% were undergraduates. Sixty-three percent reported that their parent or guardian had completed a bachelor’s degree. Regarding participation in training programs prior to NRMN, 60% had participated in mentor training, and 62% reported involvement in research training activities such as workshops, field experiences, and conferences. Patterns of participation in prior mentorship or research program varied across demographic characteristics.

The NRMN common data reveal the backgrounds of over 6,000 participants engaged in mentorship intervention studies across the biomedical workforce. The dataset includes participants from diverse demographics and career stages with varying levels of participation in prior mentor training and exposure to research training programs. This extensive dataset provides a valuable opportunity to explore the long-term impact of mentorship on the biomedical workforce in future research.