The record
A Los Angeles County analysis reported that talc-use population attributable risk percentages were comparable across racial/ethnic groups, ranging from 12.2% to 15.1%, and that African Americans and Hispanics remain at LOWER ovarian cancer risk than non-Hispanic Whites after accounting for non-genetic risk factors.
Claim scope
A talc-specific PAR range (12.2%-15.1%) and independent confirmation that per-exposure risk associations are comparable across groups. Verified per-record: Wu AH et al., Cancer Epidemiol Biomarkers Prev 2015;24(7):1094-100, DOI 10.1158/1055-9965.EPI-15-0023, PMC4490941. Sample: 308 Hispanic cases/380 controls, 128 African American cases/143 controls, 1,265 non-Hispanic White cases/1,868 controls.
What this source does not establish
It does not support a differential-risk narrative and in fact cuts against the simplest version of one — its title states African Americans and Hispanics remain at LOWER ovarian cancer risk than non-Hispanic Whites. The African American stratum is small (128 cases).
Limitations
THIS STUDY IS PROBABLY WHAT McTIERNAN MEANT by the '2015' study that 'was able to look at both black and Latino women, as well as white women, and found similar increased risk' — the timing, the three-group design, and 'similar' all match. I could not verify that identification from the transcript, which names no study. Flagged as INFERRED. Note that its overall finding is lower baseline incidence in these groups, which the page must not omit if it cites the study.
Source
Pmid — 25873577