TY - JOUR
T1 - Incidence of essential tremor in three elderly populations of Central Spain
AU - Benito-León, Julian
AU - Bermejo-Pareja, Félix
AU - Louis, Elan D.
PY - 2005/5/24
Y1 - 2005/5/24
N2 - 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 1998). The evaluation included a screening question for ET and a neurologic examination, when possible. Results: Of 5,278 subjects evaluated at baseline, there were 256 prevalent ET cases. Eighty-three incident ET cases were identified among 3,942 individuals assessed at follow-up. The adjusted annual incidence rate (per 100,000 person-years) in the population aged 65 years and older was 616 (95% CI: 447 to 784). Sixty-four (77.1%) of 83 incident cases had not been diagnosed before our assessment. Conclusions: The incidence of ET may be higher than previously recognized because a large proportion of patients with ET may never seek medical attention.
AB - 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 1998). The evaluation included a screening question for ET and a neurologic examination, when possible. Results: Of 5,278 subjects evaluated at baseline, there were 256 prevalent ET cases. Eighty-three incident ET cases were identified among 3,942 individuals assessed at follow-up. The adjusted annual incidence rate (per 100,000 person-years) in the population aged 65 years and older was 616 (95% CI: 447 to 784). Sixty-four (77.1%) of 83 incident cases had not been diagnosed before our assessment. Conclusions: The incidence of ET may be higher than previously recognized because a large proportion of patients with ET may never seek medical attention.
UR - http://www.scopus.com/inward/record.url?scp=18844451452&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=18844451452&partnerID=8YFLogxK
U2 - 10.1212/01.WNL.0000161852.70374.01
DO - 10.1212/01.WNL.0000161852.70374.01
M3 - Article
C2 - 15911798
AN - SCOPUS:18844451452
SN - 0028-3878
VL - 64
SP - 1721
EP - 1725
JO - Neurology
JF - Neurology
IS - 10
ER -