Role of Online Patient Portal Self-Scheduling and Self-Referral Pathways to Decrease Health Disparity for Screening Mammography

Purpose: The aim of this study was to assess the rate of self-scheduling and self-referral for screening mammography and to assess sociodemographic factors associated with their use in an academic health care system in southern California. Methods: Patients scheduled for screening mammography between February 1, 2021, and September 20, 2022, were included in this retrospective study. Multivariable logistic regression models were used to assess associations among sociodemographic factors, selfreferral, and online self-scheduling pathways. Results: In total, 22,306 patients were scheduled for screening mammography (mean age, 59 years; 66.8% White, 20.4% Asian, and 20.6% Hispanic). Overall, 3,566 (16.0%) used online self-scheduling, and 1,232 (5.5%) self-referred for screening mammography. Patients 70 years or older (versus 50 years or younger) (odds ratio [OR], 0.41; 95% confidence interval [CI], 0.34-0.51), Spanish (versus English) speakers (OR, 0.22; 95% CI, 0.16-0.31), and those on Medicaid (versus commercially insured) (OR, 0.71; 95% CI, 0.500.99) were less likely to self-schedule. Hispanic patients (versus non-Hispanic) (OR, 1.39; 95% CI, 1.20-1.61), Asian patients (versus White) (OR, 1.64; 95% CI, 1.46-1.85), and patients residing in the most (versus least) disadvantaged neighborhoods (OR, 1.16; 95% CI, 1.02-1.33) were more likely to self-schedule. Furthermore, patients 70 years or older (versus 50 or younger) (OR, 0.70; 95% CI, 0.52-0.93) and Spanish speakers (OR, 0.05; 95% CI, 0.03-0.09) were less likely to self-refer, whereas Black patients (versus White) (OR, 1.89; 95% CI, 1.30-2.75), patients on Medicaid (versus commercially insured) (OR, 3.70; 95% CI, 2.65-5.13), and patients living in the most (versus least) disadvantaged neighborhoods (OR, 1.52; 95% CI, 1.27-1.82) were more likely to self-refer. Conclusions: Sociodemographic differences in online patient portal use and self-referral for screening mammography suggest that the two pathways have been successful in addressing some of the existing scheduling barriers and are a step toward closing the disparity gap.