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Incidence, 30-day case-fatality rate, and prognosis of stroke in Iquique, Chile: a 2-year community-based prospective study (PISCIS project.

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Title: Incidence, 30-day case-fatality rate, and prognosis of stroke in Iquique, Chile: a 2-year community-based prospective study (PISCIS project.
Authors: Lavados, Pablo M., Sacks, Claudio, Prina, Liliana, Escobar, Arturo, Tossi, Claudia, Araya, Fernando, Feuerhake, Walter, Galvez, Marcelo, Salinas, Rodrigo, Alvarez, Gonzalo
Source: Lancet. 6/25/2005, Vol. 365 Issue 9478, p2206-2215. 10p. 9 Charts.
Subjects: Cerebrovascular disease, Disease risk factors, Health of Latin Americans, Mestizos, Neurological research, Diseases in ethnic groups, Health
Geographic Terms: Iquique (Chile), Chile
Abstract: Summary Background The epidemiology of stroke in Latin-American populations and variation of subtypes between communities are unclear. Our aim was to ascertain prospectively the incidence of first-ever stroke in the predominantly Hispanic-Mestizo population of Iquique, a city in the northern desert region of Chile. Methods We prospectively identified all possible cases of stroke and transient ischaemic attacks between July 1, 2000, and June 30, 2002, from several overlapping sources. Patients were rapidly assessed by two field neurologists. Standard definitions for incident cases, stroke, transient ischaemic attack, pathological type, and infarction subtype were used. All cases identified were adjudicated by at least two stroke neurologists and followed up at 6 months. Incidence rates of first-ever strokes were calculated from the population of Iquique (214,526) according to the national census of 2002. Findings Of 380 cases of stroke identified, 292 were incident. CT scans were done in 267 (91%) patients and the mean time to scan was 2·2 days. The hospital admission rate was 71% (207/292). The overall age-adjusted incidence rate of first-ever stroke was 140·1 per 100,000 (95% CI 124·0-156·2). The incidence rates per 100,000 according to pathological type were: infarcts 87·3, intracerebral haemorrhage 27·6, and subarachnoid haemorrhage 6·2. The 30 day and 6-month case-fatality rates were 23·3% and 33·0%, respectively. Interpretation Our results show incidence rates of stroke similar to those reported in other community studies. Although the proportion of intracerebral hemorrhages was higher than reported in previous studies, the overall incidence was not, which could indicate a slightly lower incidence of ischaemic strokes in this population than in other countries. The prognosis was similar to that found in other population-based studies. [ABSTRACT FROM AUTHOR]
Copyright of Lancet is the property of Lancet and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Incidence, 30-day case-fatality rate, and prognosis of stroke in Iquique, Chile: a 2-year community-based prospective study (PISCIS project.
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  Data: Summary Background The epidemiology of stroke in Latin-American populations and variation of subtypes between communities are unclear. Our aim was to ascertain prospectively the incidence of first-ever stroke in the predominantly Hispanic-Mestizo population of Iquique, a city in the northern desert region of Chile. Methods We prospectively identified all possible cases of stroke and transient ischaemic attacks between July 1, 2000, and June 30, 2002, from several overlapping sources. Patients were rapidly assessed by two field neurologists. Standard definitions for incident cases, stroke, transient ischaemic attack, pathological type, and infarction subtype were used. All cases identified were adjudicated by at least two stroke neurologists and followed up at 6 months. Incidence rates of first-ever strokes were calculated from the population of Iquique (214,526) according to the national census of 2002. Findings Of 380 cases of stroke identified, 292 were incident. CT scans were done in 267 (91%) patients and the mean time to scan was 2·2 days. The hospital admission rate was 71% (207/292). The overall age-adjusted incidence rate of first-ever stroke was 140·1 per 100,000 (95% CI 124·0-156·2). The incidence rates per 100,000 according to pathological type were: infarcts 87·3, intracerebral haemorrhage 27·6, and subarachnoid haemorrhage 6·2. The 30 day and 6-month case-fatality rates were 23·3% and 33·0%, respectively. Interpretation Our results show incidence rates of stroke similar to those reported in other community studies. Although the proportion of intracerebral hemorrhages was higher than reported in previous studies, the overall incidence was not, which could indicate a slightly lower incidence of ischaemic strokes in this population than in other countries. The prognosis was similar to that found in other population-based studies. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Lancet is the property of Lancet and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1016/S0140-6736(05)66779-7
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      – SubjectFull: Cerebrovascular disease
        Type: general
      – SubjectFull: Disease risk factors
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      – SubjectFull: Health of Latin Americans
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