Rapid reduction of malaria following introduction of vector control interventions in Tororo District, Uganda: a descriptive study
Abstract Background In 2012, Tororo District had the highest malaria burden in Uganda with community Plasmodium prevalence of 48%. To control malaria in the district, the Ministry of Health introduced universal distribution of long lasting insecticide-treated nets (LLINs) in 2013 and added indoor re...
Published in: | Malaria Journal |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
BMC
2017
|
Subjects: | |
Online Access: | https://doi.org/10.1186/s12936-017-1871-3 https://doaj.org/article/3686894d7ffe47328a0a93b2be95667f |
id |
ftdoajarticles:oai:doaj.org/article:3686894d7ffe47328a0a93b2be95667f |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:3686894d7ffe47328a0a93b2be95667f 2023-05-15T15:18:31+02:00 Rapid reduction of malaria following introduction of vector control interventions in Tororo District, Uganda: a descriptive study David W. Oguttu Joseph K. B. Matovu David C. Okumu Alex R. Ario Allen E. Okullo Jimmy Opigo Victoria Nankabirwa 2017-05-01T00:00:00Z https://doi.org/10.1186/s12936-017-1871-3 https://doaj.org/article/3686894d7ffe47328a0a93b2be95667f EN eng BMC http://link.springer.com/article/10.1186/s12936-017-1871-3 https://doaj.org/toc/1475-2875 doi:10.1186/s12936-017-1871-3 1475-2875 https://doaj.org/article/3686894d7ffe47328a0a93b2be95667f Malaria Journal, Vol 16, Iss 1, Pp 1-8 (2017) Malaria Incidence Reduction Vector Control Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 article 2017 ftdoajarticles https://doi.org/10.1186/s12936-017-1871-3 2022-12-31T02:01:03Z Abstract Background In 2012, Tororo District had the highest malaria burden in Uganda with community Plasmodium prevalence of 48%. To control malaria in the district, the Ministry of Health introduced universal distribution of long lasting insecticide-treated nets (LLINs) in 2013 and added indoor residual spraying (IRS) in 2014. This study assessed malaria incidence, test positivity rates and outpatient (OPD) attendance due to malaria before and after vector control interventions. Methods This study was based on analysis of Health Management Information System (HMIS) secondary malaria surveillance data of 2,727,850 patient records in OPD registers of 61 health facilities from 2012 to 2015. The analysis estimated monthly malaria incidence for the entire population and also separately for <5- and ≥5-year-olds before and after introduction of vector control interventions; determined laboratory test positivity rates and annual percentage of malaria cases in OPD. Chi square for trends was used to analyse annual change in malaria incidence and logistic regression for monthly reduction. Results Following universal LLINs coverage, the annual mean monthly malaria incidence fell from 95 cases in 2013 to 76 cases per 1000 in 2014 with no significant monthly reduction (OR = 0.99, 95% CI 0.96–1.01, P = 0.37). Among children <5 years, the malaria incidence reduced from 130 to 100 cases per 1000 (OR = 0.98, 95% CI 0.97–1.00, P = 0.08) when LLINs were used alone in 2014, but declined to 45 per 1000 in 2015 when IRS was combined with LLINs (OR = 0.94, 95% CI 0.91–0.996, P < 0.0001). Among individuals aged ≥5 years, mean monthly malaria incidence reduced from 59 to 52 cases per 1000 (OR = 0.99, 95% CI 0.97–1.02, P = 0.8) when LLINs were used alone in 2014, but reduced significantly to 25 per 1000 in 2015 (OR = 0.91, 95% CI 0.88–0.94, P < 0.0001). Malaria test positivity rate reduced from 57% in 2013 to 30% (Chi = 15, P < 0.0001) in 2015. Slide positivity rate reduced from 45% in 2013 to 21% in 2015 (P = 0.004) ... Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Malaria Journal 16 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Malaria Incidence Reduction Vector Control Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
spellingShingle |
Malaria Incidence Reduction Vector Control Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 David W. Oguttu Joseph K. B. Matovu David C. Okumu Alex R. Ario Allen E. Okullo Jimmy Opigo Victoria Nankabirwa Rapid reduction of malaria following introduction of vector control interventions in Tororo District, Uganda: a descriptive study |
topic_facet |
Malaria Incidence Reduction Vector Control Arctic medicine. Tropical medicine RC955-962 Infectious and parasitic diseases RC109-216 |
description |
Abstract Background In 2012, Tororo District had the highest malaria burden in Uganda with community Plasmodium prevalence of 48%. To control malaria in the district, the Ministry of Health introduced universal distribution of long lasting insecticide-treated nets (LLINs) in 2013 and added indoor residual spraying (IRS) in 2014. This study assessed malaria incidence, test positivity rates and outpatient (OPD) attendance due to malaria before and after vector control interventions. Methods This study was based on analysis of Health Management Information System (HMIS) secondary malaria surveillance data of 2,727,850 patient records in OPD registers of 61 health facilities from 2012 to 2015. The analysis estimated monthly malaria incidence for the entire population and also separately for <5- and ≥5-year-olds before and after introduction of vector control interventions; determined laboratory test positivity rates and annual percentage of malaria cases in OPD. Chi square for trends was used to analyse annual change in malaria incidence and logistic regression for monthly reduction. Results Following universal LLINs coverage, the annual mean monthly malaria incidence fell from 95 cases in 2013 to 76 cases per 1000 in 2014 with no significant monthly reduction (OR = 0.99, 95% CI 0.96–1.01, P = 0.37). Among children <5 years, the malaria incidence reduced from 130 to 100 cases per 1000 (OR = 0.98, 95% CI 0.97–1.00, P = 0.08) when LLINs were used alone in 2014, but declined to 45 per 1000 in 2015 when IRS was combined with LLINs (OR = 0.94, 95% CI 0.91–0.996, P < 0.0001). Among individuals aged ≥5 years, mean monthly malaria incidence reduced from 59 to 52 cases per 1000 (OR = 0.99, 95% CI 0.97–1.02, P = 0.8) when LLINs were used alone in 2014, but reduced significantly to 25 per 1000 in 2015 (OR = 0.91, 95% CI 0.88–0.94, P < 0.0001). Malaria test positivity rate reduced from 57% in 2013 to 30% (Chi = 15, P < 0.0001) in 2015. Slide positivity rate reduced from 45% in 2013 to 21% in 2015 (P = 0.004) ... |
format |
Article in Journal/Newspaper |
author |
David W. Oguttu Joseph K. B. Matovu David C. Okumu Alex R. Ario Allen E. Okullo Jimmy Opigo Victoria Nankabirwa |
author_facet |
David W. Oguttu Joseph K. B. Matovu David C. Okumu Alex R. Ario Allen E. Okullo Jimmy Opigo Victoria Nankabirwa |
author_sort |
David W. Oguttu |
title |
Rapid reduction of malaria following introduction of vector control interventions in Tororo District, Uganda: a descriptive study |
title_short |
Rapid reduction of malaria following introduction of vector control interventions in Tororo District, Uganda: a descriptive study |
title_full |
Rapid reduction of malaria following introduction of vector control interventions in Tororo District, Uganda: a descriptive study |
title_fullStr |
Rapid reduction of malaria following introduction of vector control interventions in Tororo District, Uganda: a descriptive study |
title_full_unstemmed |
Rapid reduction of malaria following introduction of vector control interventions in Tororo District, Uganda: a descriptive study |
title_sort |
rapid reduction of malaria following introduction of vector control interventions in tororo district, uganda: a descriptive study |
publisher |
BMC |
publishDate |
2017 |
url |
https://doi.org/10.1186/s12936-017-1871-3 https://doaj.org/article/3686894d7ffe47328a0a93b2be95667f |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Malaria Journal, Vol 16, Iss 1, Pp 1-8 (2017) |
op_relation |
http://link.springer.com/article/10.1186/s12936-017-1871-3 https://doaj.org/toc/1475-2875 doi:10.1186/s12936-017-1871-3 1475-2875 https://doaj.org/article/3686894d7ffe47328a0a93b2be95667f |
op_doi |
https://doi.org/10.1186/s12936-017-1871-3 |
container_title |
Malaria Journal |
container_volume |
16 |
container_issue |
1 |
_version_ |
1766348717354385408 |