10.6084/m9.figshare.5122954.v1 Li X. Li X. Sundquist J. Sundquist J. Sundquist K. Sundquist K. Supplementary Material for: Subsequent Risks of Parkinson Disease in Patients with Autoimmune and Related Disorders: A Nationwide Epidemiological Study from Sweden Karger Publishers 2011 Autoimmune disorders Subsequent Parkinson disease Population-based study Follow-up study 2011-12-23 00:00:00 Dataset https://karger.figshare.com/articles/dataset/Supplementary_Material_for_Subsequent_Risks_of_Parkinson_Disease_in_Patients_with_Autoimmune_and_Related_Disorders_A_Nationwide_Epidemiological_Study_from_Sweden/5122954 <i>Objectives:</i> To investigate associations between autoimmune disorders and Parkinson disease (PD), and to study whether the risk is associated with follow-up time and age. <i>Methods:</i> Standardized incidence ratios (SIRs) were calculated for PD in patients with autoimmune disorders by comparing them to subjects without autoimmune disorders. <i>Results:</i> Among 310,522 patients with a total of 33 conditions of autoimmune disorders, 932 patients developed subsequent PD, giving an overall SIR of 1.33 and 1.19 for PD diagnosed later than 1 year after follow-up. Six types of autoimmune disorders showed an increased risk. These conditions included: amyotrophic lateral sclerosis, Graves’s disease/hyperthyroidism, Hashimoto’s disease/hypothyroidism, multiple sclerosis, pernicious anemia, and polymyalgia rheumatica. The risks depended on the age at hospitalization for PD. <i>Conclusions:</i> A 33% overall excess risk of PD was noted among patients with an autoimmune disorder; the risk was increased during the first 10 years of follow-up after hospitalization of autoimmune disorders.