Risk of Parkinson Disease Onset in Patients With Diabetes: A 9-year population-based cohort study with age and sex stratifications.

Diabetes Care. 2012 Mar 19. [Epub ahead of print]

Sun Y, Chang YH, Chen HF, Su YH, Su HF, Li CY.

Source

Department of Neurology, En Chu Kong Hospital, Sanxia District, New Taipei City, Taiwan.

Abstract

OBJECTIVE
We retrospectively assessed the age- and sex-specific incidence and relative risk of Parkinson disease (PD) in Taiwan's diabetic population.

RESEARCH DESIGN AND METHODS
Study cohort included 603,416 diabetic patients and 472,188 nondiabetic control subjects. Incidence rate and relative risk of PD (ICD-9-CM 332.0) were evaluated.

RESULTS
The incidence of PD was 3.59 and 2.15 per 10,000 person-years for the diabetic and control group, respectively, representing a covariate adjusted hazard ratio (HR) of 1.61 (95% CI 1.56-1.66), which was substantially reduced to 1.37 (1.32-1.41) after adjusting for medical visits. Diabetes was associated with a significantly elevated risk of PD in all sex and age stratifications except in young women, with the highest HR noted for young men aged 21-40 years (2.10 [1.01-4.42]), followed by women aged 41-60 (2.05 [1.82-2.30]) and >60 years (1.65 [1.58-1.73]).

CONCLUSIONS
Diabetes is associated with an increased risk of PD onset in a Chinese population, and the relation is stronger in women and younger patients.