Patient-Reported and Economic Racial and Ethnic Disparities in Patients with Psoriatic Arthritis: Results from the National Health and Wellness Survey

Abstract Introduction Psoriatic arthritis (PsA) is a chronic, autoimmune form of arthritis that is associated with a substantial humanistic and economic burden. Potential differences in patient-reported outcomes (PROs) and economic outcomes among groups of varying PsA severity and different races/ethnicities have not been well studied. Methods This cross-sectional study assessed sociodemographic data, PROs, and economic outcomes for participants with PsA from the National Health and Wellness Survey (2018–2020). Multivariable analyses were used to assess the association of self-reported PsA severity and race/ethnicity with health-related quality of life (HRQoL), work productivity and activity impairment (WPAI), healthcare resource utilization (HCRU), and medical costs. Results This study included 1544 participants with PsA (1073 non-Hispanic white, 114 non-Hispanic Black, 223 Hispanic, and 134 Other). Self-reported moderate/severe PsA was associated with significantly worse HRQoL and WPAI, greater HCRU, and higher costs than self-reported mild PsA. Black participants reported more absenteeism (31.11% vs. 16.69%; P = 0.007) and activity impairment (54.27% vs. 47.96%; P = 0.047) than white participants, and fewer healthcare provider (5.93 vs. 7.42; P = 0.039) and rheumatologist visits (0.29 vs. 0.53; P = 0.028) over the past 6 months. No differences in outcomes were observed between Hispanic and white participants. Race/ethnicity moderated the association of perceived PsA severity and PROs and HCRU, such that white participants with self-reported moderate/severe PsA had a higher likelihood of depression (P