A spatial and temporal analysis of notifiable gastrointestinal illness in the Northwest Territories, Canada, 1991-2008
Abstract Background This is the first study to describe the geographical and temporal distribution of notifiable gastrointestinal illness (NGI) in the Northwest Territories (NWT), Canada. Understanding the distribution of NGI in space and time is important for identifying communities at high risk. U...
Published in: | International Journal of Health Geographics |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
BMC
2012
|
Subjects: | |
Online Access: | https://doi.org/10.1186/1476-072X-11-17 https://doaj.org/article/a9525b7bda2e439fa04de3c37f22f24a |
id |
ftdoajarticles:oai:doaj.org/article:a9525b7bda2e439fa04de3c37f22f24a |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:a9525b7bda2e439fa04de3c37f22f24a 2023-05-15T17:46:31+02:00 A spatial and temporal analysis of notifiable gastrointestinal illness in the Northwest Territories, Canada, 1991-2008 Pardhan-Ali Aliya Berke Olaf Wilson Jeff Edge Victoria L Furgal Chris Reid-Smith Richard Santos Maria McEwen Scott A 2012-05-01T00:00:00Z https://doi.org/10.1186/1476-072X-11-17 https://doaj.org/article/a9525b7bda2e439fa04de3c37f22f24a EN eng BMC http://www.ij-healthgeographics.com/content/11/1/17 https://doaj.org/toc/1476-072X doi:10.1186/1476-072X-11-17 1476-072X https://doaj.org/article/a9525b7bda2e439fa04de3c37f22f24a International Journal of Health Geographics, Vol 11, Iss 1, p 17 (2012) Gastrointestinal illness Foodborne diseases Waterborne diseases Minority health Population surveillance Spatial epidemiology Temporal epidemiology Spatio-temporal epidemiology Computer applications to medicine. Medical informatics R858-859.7 article 2012 ftdoajarticles https://doi.org/10.1186/1476-072X-11-17 2022-12-30T22:19:12Z Abstract Background This is the first study to describe the geographical and temporal distribution of notifiable gastrointestinal illness (NGI) in the Northwest Territories (NWT), Canada. Understanding the distribution of NGI in space and time is important for identifying communities at high risk. Using data derived from the Northwest Territories Communicable Disease Registry (NWT CDR), a number of spatial and temporal techniques were used to explore and analyze NGI incidence from the years 1991 to 2008. Relative risk mapping was used to investigate the variation of disease risk. Scan test statistics were applied to conduct cluster identification in space, time and space-time. Seasonal decomposition of the time series was used to assess seasonal variation and trends in the data. Results There was geographic variability in the rates of NGI with higher notifications in the south compared to the north. Incidence of NGI exhibited seasonality with peaks in the fall months for most years. Two possible outbreaks were detected in the fall of 1995 and 2001, of which one coincided with a previously recognized outbreak. Overall, incidence of NGI fluctuated from 1991 to 2001 followed by a tendency for rates to decrease from 2002 to 2008. Conclusions The distribution of NGI notifications varied widely according to geographic region, season and year. While the analyses highlighted a possible bias in the surveillance data, this information is beneficial for generating hypotheses about risk factors for infection. Article in Journal/Newspaper Northwest Territories Directory of Open Access Journals: DOAJ Articles Northwest Territories Canada International Journal of Health Geographics 11 1 17 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Gastrointestinal illness Foodborne diseases Waterborne diseases Minority health Population surveillance Spatial epidemiology Temporal epidemiology Spatio-temporal epidemiology Computer applications to medicine. Medical informatics R858-859.7 |
spellingShingle |
Gastrointestinal illness Foodborne diseases Waterborne diseases Minority health Population surveillance Spatial epidemiology Temporal epidemiology Spatio-temporal epidemiology Computer applications to medicine. Medical informatics R858-859.7 Pardhan-Ali Aliya Berke Olaf Wilson Jeff Edge Victoria L Furgal Chris Reid-Smith Richard Santos Maria McEwen Scott A A spatial and temporal analysis of notifiable gastrointestinal illness in the Northwest Territories, Canada, 1991-2008 |
topic_facet |
Gastrointestinal illness Foodborne diseases Waterborne diseases Minority health Population surveillance Spatial epidemiology Temporal epidemiology Spatio-temporal epidemiology Computer applications to medicine. Medical informatics R858-859.7 |
description |
Abstract Background This is the first study to describe the geographical and temporal distribution of notifiable gastrointestinal illness (NGI) in the Northwest Territories (NWT), Canada. Understanding the distribution of NGI in space and time is important for identifying communities at high risk. Using data derived from the Northwest Territories Communicable Disease Registry (NWT CDR), a number of spatial and temporal techniques were used to explore and analyze NGI incidence from the years 1991 to 2008. Relative risk mapping was used to investigate the variation of disease risk. Scan test statistics were applied to conduct cluster identification in space, time and space-time. Seasonal decomposition of the time series was used to assess seasonal variation and trends in the data. Results There was geographic variability in the rates of NGI with higher notifications in the south compared to the north. Incidence of NGI exhibited seasonality with peaks in the fall months for most years. Two possible outbreaks were detected in the fall of 1995 and 2001, of which one coincided with a previously recognized outbreak. Overall, incidence of NGI fluctuated from 1991 to 2001 followed by a tendency for rates to decrease from 2002 to 2008. Conclusions The distribution of NGI notifications varied widely according to geographic region, season and year. While the analyses highlighted a possible bias in the surveillance data, this information is beneficial for generating hypotheses about risk factors for infection. |
format |
Article in Journal/Newspaper |
author |
Pardhan-Ali Aliya Berke Olaf Wilson Jeff Edge Victoria L Furgal Chris Reid-Smith Richard Santos Maria McEwen Scott A |
author_facet |
Pardhan-Ali Aliya Berke Olaf Wilson Jeff Edge Victoria L Furgal Chris Reid-Smith Richard Santos Maria McEwen Scott A |
author_sort |
Pardhan-Ali Aliya |
title |
A spatial and temporal analysis of notifiable gastrointestinal illness in the Northwest Territories, Canada, 1991-2008 |
title_short |
A spatial and temporal analysis of notifiable gastrointestinal illness in the Northwest Territories, Canada, 1991-2008 |
title_full |
A spatial and temporal analysis of notifiable gastrointestinal illness in the Northwest Territories, Canada, 1991-2008 |
title_fullStr |
A spatial and temporal analysis of notifiable gastrointestinal illness in the Northwest Territories, Canada, 1991-2008 |
title_full_unstemmed |
A spatial and temporal analysis of notifiable gastrointestinal illness in the Northwest Territories, Canada, 1991-2008 |
title_sort |
spatial and temporal analysis of notifiable gastrointestinal illness in the northwest territories, canada, 1991-2008 |
publisher |
BMC |
publishDate |
2012 |
url |
https://doi.org/10.1186/1476-072X-11-17 https://doaj.org/article/a9525b7bda2e439fa04de3c37f22f24a |
geographic |
Northwest Territories Canada |
geographic_facet |
Northwest Territories Canada |
genre |
Northwest Territories |
genre_facet |
Northwest Territories |
op_source |
International Journal of Health Geographics, Vol 11, Iss 1, p 17 (2012) |
op_relation |
http://www.ij-healthgeographics.com/content/11/1/17 https://doaj.org/toc/1476-072X doi:10.1186/1476-072X-11-17 1476-072X https://doaj.org/article/a9525b7bda2e439fa04de3c37f22f24a |
op_doi |
https://doi.org/10.1186/1476-072X-11-17 |
container_title |
International Journal of Health Geographics |
container_volume |
11 |
container_issue |
1 |
container_start_page |
17 |
_version_ |
1766150214894223360 |