Towards a risk map of malaria for Sri Lanka: the importance of house location relative to vector breeding sites

Wim Van Der Hoek; Flemming Konradsen; Priyanie H Amerasinghe; Devika Perera; M K Piyaratne; Felix P Amerasinghe

Towards a risk map of malaria for Sri Lanka: the importance of house location relative to vector breeding sites

Wim Van Der Hoek, Flemming Konradsen, Priyanie H Amerasinghe, Devika Perera, M K Piyaratne, Felix P Amerasinghe

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

87 Citationer (Scopus)

Abstract

Udgivelsesdato: 2003-Apr

Originalsprog	Engelsk
Tidsskrift	International Journal of Epidemiology
Vol/bind	32
Udgave nummer	2
Sider (fra-til)	280-5
Antal sider	5
ISSN	0300-5771
Status	Udgivet - 2003

Bibliografisk note

Keywords: Animals; Housing; Humans; Insect Vectors; Malaria; Mosquito Control; Odds Ratio; Residence Characteristics; Risk Assessment; Risk Factors; Sri Lanka; Topography, Medical

Citationsformater

Towards a risk map of malaria for Sri Lanka: the importance of house location relative to vector breeding sites. / Van Der Hoek, Wim; Konradsen, Flemming; Amerasinghe, Priyanie H; Perera, Devika; Piyaratne, M K; Amerasinghe, Felix P.

I: International Journal of Epidemiology, Bind 32, Nr. 2, 2003, s. 280-5.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

@article{9a93ee90ec5e11ddbf70000ea68e967b,

title = "Towards a risk map of malaria for Sri Lanka: the importance of house location relative to vector breeding sites",

abstract = "BACKGROUND: In Sri Lanka, the major malaria vector Anopheles culicifacies breeds in pools formed in streams and river beds and it is likely that people living close to such breeding sites are at higher risk of malaria than people living further away. This study was done to quantify the importance of house location relative to vector breeding sites for the occurrence of malaria in order to assess the usefulness of this parameter in future malaria risk maps. Such risk maps could be important tools for planning efficient malaria control measures. METHODS: In a group of seven villages in north central Sri Lanka, malaria cases were compared with community controls for distance from house to breeding sites and a number of other variables, including type of housing construction and use of anti-mosquito measures. The presence of An. culicifacies in bedrooms was determined by indoor insecticide spray collections. RESULTS: People living within 750 m of the local stream, which was the established vector-breeding site, were at much higher risk for malaria than people living further away (odds ratio adjusted for confounding by other variables 5.93, 95% CI: 3.50-8.91). Houses close to the stream also had more adult An. culicifacies in the bedrooms. Poor housing construction was an independent risk factor for malaria. CONCLUSIONS: Risk maps of malaria in Sri Lanka can be based on the location of houses relative to streams and rivers that are potential breeding sites for the malaria vector An. culicifacies. A distance of 750 m is suggested as the cut-off point in defining low- and high-risk villages.",

author = "{Van Der Hoek}, Wim and Flemming Konradsen and Amerasinghe, {Priyanie H} and Devika Perera and Piyaratne, {M K} and Amerasinghe, {Felix P}",

note = "Keywords: Animals; Housing; Humans; Insect Vectors; Malaria; Mosquito Control; Odds Ratio; Residence Characteristics; Risk Assessment; Risk Factors; Sri Lanka; Topography, Medical",

year = "2003",

language = "English",

volume = "32",

pages = "280--5",

journal = "International Journal of Epidemiology",

issn = "0300-5771",

publisher = "Oxford University Press",

number = "2",

}

TY - JOUR

T1 - Towards a risk map of malaria for Sri Lanka: the importance of house location relative to vector breeding sites

AU - Van Der Hoek, Wim

AU - Konradsen, Flemming

AU - Amerasinghe, Priyanie H

AU - Perera, Devika

AU - Piyaratne, M K

AU - Amerasinghe, Felix P

N1 - Keywords: Animals; Housing; Humans; Insect Vectors; Malaria; Mosquito Control; Odds Ratio; Residence Characteristics; Risk Assessment; Risk Factors; Sri Lanka; Topography, Medical

PY - 2003

Y1 - 2003

N2 - BACKGROUND: In Sri Lanka, the major malaria vector Anopheles culicifacies breeds in pools formed in streams and river beds and it is likely that people living close to such breeding sites are at higher risk of malaria than people living further away. This study was done to quantify the importance of house location relative to vector breeding sites for the occurrence of malaria in order to assess the usefulness of this parameter in future malaria risk maps. Such risk maps could be important tools for planning efficient malaria control measures. METHODS: In a group of seven villages in north central Sri Lanka, malaria cases were compared with community controls for distance from house to breeding sites and a number of other variables, including type of housing construction and use of anti-mosquito measures. The presence of An. culicifacies in bedrooms was determined by indoor insecticide spray collections. RESULTS: People living within 750 m of the local stream, which was the established vector-breeding site, were at much higher risk for malaria than people living further away (odds ratio adjusted for confounding by other variables 5.93, 95% CI: 3.50-8.91). Houses close to the stream also had more adult An. culicifacies in the bedrooms. Poor housing construction was an independent risk factor for malaria. CONCLUSIONS: Risk maps of malaria in Sri Lanka can be based on the location of houses relative to streams and rivers that are potential breeding sites for the malaria vector An. culicifacies. A distance of 750 m is suggested as the cut-off point in defining low- and high-risk villages.

AB - BACKGROUND: In Sri Lanka, the major malaria vector Anopheles culicifacies breeds in pools formed in streams and river beds and it is likely that people living close to such breeding sites are at higher risk of malaria than people living further away. This study was done to quantify the importance of house location relative to vector breeding sites for the occurrence of malaria in order to assess the usefulness of this parameter in future malaria risk maps. Such risk maps could be important tools for planning efficient malaria control measures. METHODS: In a group of seven villages in north central Sri Lanka, malaria cases were compared with community controls for distance from house to breeding sites and a number of other variables, including type of housing construction and use of anti-mosquito measures. The presence of An. culicifacies in bedrooms was determined by indoor insecticide spray collections. RESULTS: People living within 750 m of the local stream, which was the established vector-breeding site, were at much higher risk for malaria than people living further away (odds ratio adjusted for confounding by other variables 5.93, 95% CI: 3.50-8.91). Houses close to the stream also had more adult An. culicifacies in the bedrooms. Poor housing construction was an independent risk factor for malaria. CONCLUSIONS: Risk maps of malaria in Sri Lanka can be based on the location of houses relative to streams and rivers that are potential breeding sites for the malaria vector An. culicifacies. A distance of 750 m is suggested as the cut-off point in defining low- and high-risk villages.

M3 - Journal article

C2 - 12714550

VL - 32

SP - 280

EP - 285

JO - International Journal of Epidemiology

JF - International Journal of Epidemiology

SN - 0300-5771

IS - 2

ER -