Validity of Self-Reported Stroke
Background and Purpose —The aim of this study was to validate the diagnosis of self-reported stroke. Methods —During 1994–1995, 27 159 people attended a population health survey in the community of Tromsø, Norway, a response rate of 77%. A total of 418 attenders reported a history of stroke. In 1997...
Published in: | Stroke |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Ovid Technologies (Wolters Kluwer Health)
2000
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1161/01.str.31.7.1602 https://www.ahajournals.org/doi/full/10.1161/01.STR.31.7.1602 |
id |
crovidcr:10.1161/01.str.31.7.1602 |
---|---|
record_format |
openpolar |
spelling |
crovidcr:10.1161/01.str.31.7.1602 2024-10-13T14:11:09+00:00 Validity of Self-Reported Stroke The Tromsø Study Engstad, Torgeir Bønaa, Kaare H. Viitanen, Matti 2000 http://dx.doi.org/10.1161/01.str.31.7.1602 https://www.ahajournals.org/doi/full/10.1161/01.STR.31.7.1602 en eng Ovid Technologies (Wolters Kluwer Health) Stroke volume 31, issue 7, page 1602-1607 ISSN 0039-2499 1524-4628 journal-article 2000 crovidcr https://doi.org/10.1161/01.str.31.7.1602 2024-09-17T04:25:09Z Background and Purpose —The aim of this study was to validate the diagnosis of self-reported stroke. Methods —During 1994–1995, 27 159 people attended a population health survey in the community of Tromsø, Norway, a response rate of 77%. A total of 418 attenders reported a history of stroke. In 1997, all individuals with a self-reported stroke who were still living in the community (n=362) were invited to a clinical reexamination. For each of the 269 people who were reexamined, a person who reported no history of stroke was selected and was reexamined in the same way. Results —On the basis of the reexamination, 213 (79.2%) of the self-reported strokes were confirmed. Thirteen individuals (4.8%) had a possible stroke. The remaining 43 individuals had either transient ischemic attack (TIA; n=18), traumatic head injuries (n=16), or perinatal cerebral damage, complicated migraine, syncope, possible TIA, or cerebral aneurysm without bleeding (n=9). Among the confirmed strokes, 30 (14.1%) were hemorrhagic and 118 (55.4%) were thromboembolic. Of the 30 hemorrhages, 16 were subarachnoidal bleedings, 10 due to ruptured aneurysms. The histories of stroke, including both the symptoms and the signs, often had a paucity of details and precision, making it impossible to classify 65 stroke victims (30.5%) into stroke subtypes. The positive predictive value (PPV) of a self-reported stroke was 0.79. The PPV was significantly ( P =0.016) greater in men (0.88) than in women (0.73). Individuals older than 60 years had a significantly greater PPV than those younger than 60 years (PPV 0.83 and 0.73, respectively; P =0.05). Hypertension was associated with a greater PPV, whereas a history of either ischemic heart disease, diabetes mellitus, lung disease, or depression had no impact on the PPV. The estimated sensitivity of self-reported stroke in the survey population was ≈80% and the specificity was 99%. Conclusions —We conclude that a self-administered questionnaire can be used to assess the prevalence of stroke in epidemiological ... Article in Journal/Newspaper Tromsø Ovid Norway Tromsø Stroke 31 7 1602 1607 |
institution |
Open Polar |
collection |
Ovid |
op_collection_id |
crovidcr |
language |
English |
description |
Background and Purpose —The aim of this study was to validate the diagnosis of self-reported stroke. Methods —During 1994–1995, 27 159 people attended a population health survey in the community of Tromsø, Norway, a response rate of 77%. A total of 418 attenders reported a history of stroke. In 1997, all individuals with a self-reported stroke who were still living in the community (n=362) were invited to a clinical reexamination. For each of the 269 people who were reexamined, a person who reported no history of stroke was selected and was reexamined in the same way. Results —On the basis of the reexamination, 213 (79.2%) of the self-reported strokes were confirmed. Thirteen individuals (4.8%) had a possible stroke. The remaining 43 individuals had either transient ischemic attack (TIA; n=18), traumatic head injuries (n=16), or perinatal cerebral damage, complicated migraine, syncope, possible TIA, or cerebral aneurysm without bleeding (n=9). Among the confirmed strokes, 30 (14.1%) were hemorrhagic and 118 (55.4%) were thromboembolic. Of the 30 hemorrhages, 16 were subarachnoidal bleedings, 10 due to ruptured aneurysms. The histories of stroke, including both the symptoms and the signs, often had a paucity of details and precision, making it impossible to classify 65 stroke victims (30.5%) into stroke subtypes. The positive predictive value (PPV) of a self-reported stroke was 0.79. The PPV was significantly ( P =0.016) greater in men (0.88) than in women (0.73). Individuals older than 60 years had a significantly greater PPV than those younger than 60 years (PPV 0.83 and 0.73, respectively; P =0.05). Hypertension was associated with a greater PPV, whereas a history of either ischemic heart disease, diabetes mellitus, lung disease, or depression had no impact on the PPV. The estimated sensitivity of self-reported stroke in the survey population was ≈80% and the specificity was 99%. Conclusions —We conclude that a self-administered questionnaire can be used to assess the prevalence of stroke in epidemiological ... |
format |
Article in Journal/Newspaper |
author |
Engstad, Torgeir Bønaa, Kaare H. Viitanen, Matti |
spellingShingle |
Engstad, Torgeir Bønaa, Kaare H. Viitanen, Matti Validity of Self-Reported Stroke |
author_facet |
Engstad, Torgeir Bønaa, Kaare H. Viitanen, Matti |
author_sort |
Engstad, Torgeir |
title |
Validity of Self-Reported Stroke |
title_short |
Validity of Self-Reported Stroke |
title_full |
Validity of Self-Reported Stroke |
title_fullStr |
Validity of Self-Reported Stroke |
title_full_unstemmed |
Validity of Self-Reported Stroke |
title_sort |
validity of self-reported stroke |
publisher |
Ovid Technologies (Wolters Kluwer Health) |
publishDate |
2000 |
url |
http://dx.doi.org/10.1161/01.str.31.7.1602 https://www.ahajournals.org/doi/full/10.1161/01.STR.31.7.1602 |
geographic |
Norway Tromsø |
geographic_facet |
Norway Tromsø |
genre |
Tromsø |
genre_facet |
Tromsø |
op_source |
Stroke volume 31, issue 7, page 1602-1607 ISSN 0039-2499 1524-4628 |
op_doi |
https://doi.org/10.1161/01.str.31.7.1602 |
container_title |
Stroke |
container_volume |
31 |
container_issue |
7 |
container_start_page |
1602 |
op_container_end_page |
1607 |
_version_ |
1812818780272721920 |