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OBJECTIVE To estimate the incidence of essential tremor (ET) in three populations in central Spain using data from the Neurologic Disorders in Central Spain (NEDICES), a population-based survey of elderly subjects (65 years and older). METHODS Individuals were evaluated at baseline (1994 to 1995) and at follow-up (a median of 3.3 years later in 1997 to(More)
There are few data on the co-morbidity of essential tremor (ET) with depression. To assess the associations of ET with self-reported depression and antidepressant medication use. In a population-based study in central Spain, participants were evaluated at baseline (1994-1995) and 3 years later. Self-reported depression and use of antidepressant medications(More)
OBJECTIVE To determine whether essential tremor (ET) is associated with prevalent dementia. METHODS The authors identified all persons with dementia and ET in a population-based study in central Spain (the Neurological Disorders in Central Spain [NEDICES] Study). Dementia was diagnosed using the Diagnostic and Statistical Manual of Mental Disorders (4th(More)
OBJECTIVE The SCOPA-Motor Scale (S-MS) for assessment of Parkinson's disease (PD), contains 21 items in three domains: Motor examination, Disability, and Complications. Our objective was to validate the S-MS Spanish version. STUDY DESIGN AND SETTING This validation study was based on a multicenter, cross-sectional, one-point-in-time evaluation design. The(More)
Tic disorders constitute a neurodevelopmental disorder of childhood. This study sought to determine the prevalence of tic disorders in a school-based sample. A randomized sample of 1158 schoolchildren, based on clusters (classrooms) in the province of Burgos (Spain), was identified on a stratified sampling frame combining types of educational center and(More)
Given the uncertain relationship between objective and subjective memory complaints (SMC), we conducted a study of cognitive function in older people with memory complaints in a large population-based elderly Spanish cohort (NEDICES). A total of 1,073 subjects with SMC and 1,073 matched controls free from dementia underwent a neuropsychological assessment,(More)
OBJECTIVE To determine whether selective memory impairment (SMI) on an adapted Mini-Mental State Examination (aMMSE) test increases risk of future dementia in a population-based survey of central Spain. BACKGROUND SMI is a strong predictor of dementia in the elderly. However, most approaches have used extensive memory batteries, which are not always(More)
Essential tremor (ET) is the most prevalent tremor disorder. ET has traditionally been viewed as a monosymptomatic disorder characterized by a kinetic arm tremor, but this definition is gradually being replaced. The clinical spectrum has come to include several motor features, including tremor and ataxia, and several non-motor features, including possible(More)
BACKGROUND A two-phase investigation method (screening followed by detailed examination) is the most accurate epidemiologic approach to estimate the epidemiology of Parkinson disease (PD) and secondary parkinsonism. The scarcity of statistics on the incidence of PD and other types of parkinsonism using this methodology led the authors to estimate them in(More)