Abstract
Young onset Parkinson's disease patients, typically aged 21 to between 40 and 55, have symptomatology similar to regular onset patients. Despite this, we suspect that physicians take longer to diagnose young onset patients since Parkinson's disease is ruled out due to the younger age. The history prior to diagnosis of 14 young onset patients (within 21 to 45years of age) was compared with an equivalent number of regular onset patients matched by gender, tremor presence, and Hoehn and Yahr stage. Indeed, a longer period of time was taken to diagnose younger patients with an average of additional 15months (p<0.001). This trend of older patients being diagnosed sooner was present in the regular onset group analyzed in isolation, but not so for the younger group. The lack of age-dependent variation in time required for diagnosis suggests that Parkinson's disease is not considered at all in the diagnosis for an extended period, accounting for the large difference in prevalence of young onset group to the regular onset group. We also observed a significantly higher number of neurologist visits (p=0.002) and clinical investigations (p<0.001) prior to diagnosis of young-onset patients. Due to the impact of delayed diagnoses on young onset patients and clinical resources, we propose that Parkinson's disease be more actively considered in differential diagnoses of younger patients presenting associated symptoms.
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