Rosenberg ES, et al. - The Cohort-adjustment Method was developed to construct viral suppression (VS) estimates, accounting for persons receiving care later in the year. Using the HIV Outpatient Study cohort, researchers identified the timing of care receipt, demographics, and VS at last test (<200 vs. ≥200 copies/mL), standardizing Medical Monitoring Project (MMP) to HIV Outpatient Study data using multivariable regression models and yielding adjusted VS estimates. The VS estimates yielded by this methodology yielded were closer to the National HIV Surveillance System estimate compared to the previously published.