CD274 and Parkinson disease: The association was not meaningfully altered after adjusting for demographic variables (model 1; OR 1.52; 95% CI 1.13–2.05) as well as for demographic variables alongside comorbidities (model 2; OR 1.54; 95% CI 1.14–2.08) and additionally for exposure to PD-1/PDL-1 inhibitors, Parkinson’s disease, and overutilization of healthcare services (model 3; OR 1.45; 95% CI 1.07–1.96; Supplementary Table 1).