Association between diabetes and subsequent Parkinson disease: A record-linkage cohort study

Journal article

OBJECTIVE: To investigate the association between type 2 diabetes mellitus (T2DM) and subsequent Parkinson disease (PD). METHODS: Linked English national Hospital Episode Statistics and mortality data (1999-2011) were used to conduct a retrospective cohort study. A cohort of individuals admitted for hospital care with a coded diagnosis of T2DM was constructed, and compared to a reference cohort. Subsequent PD risk was estimated using Cox regression models. Individuals with a coded diagnosis of cerebrovascular disease, vascular parkinsonism, drug-induced parkinsonism, and normal pressure hydrocephalus were excluded from the analysis. RESULTS:A total of 2,017,115 individuals entered the T2DM cohort and 6,173,208 entered the reference cohort. There were significantly elevated rates of PD following T2DM (hazard ratio [HR] 1.32, 95% confidence interval [CI] 1.29-1.35; p < 0.001). The relative increase was greater in those with complicated T2DM (HR 1.49, 95% CI 1.42-1.56) and when comparing younger individuals (HR 3.81, 95% CI 2.84-5.11 in age group 25-44 years). CONCLUSIONS: We report an increased rate of subsequent PD following T2DM in this large cohort study. These findings may reflect shared genetic predisposition and/or disrupted shared pathogenic pathways with potential clinical and therapeutic implications.

Authors: De Pablo-Fernandez, E; Goldacre, R; Pakpoor, J; Noyce, A; Warner, T

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: American Academy of Neurology
• Journal: Neurology
• Volume: 91
• Issue: 2
• Pages: e139-e142
• Publication date: 2018-06-13
• Acceptance date: 2018-04-09
• DOI: 10.1212/wnl.0000000000005771
• EISSN: 1526-632X
• ISSN: 0028-3878
• Pmid: 29898968
• Language: English
• Keywords: FFR