Risk Factors of Typhoid Infection in the Indonesian Archipelago
BACKGROUND: Knowledge of risk factors and their relative importance in different settings is essential to develop effective health education material for the prevention of typhoid. In this study, we examine the effect of household level and individual behavioural risk factors on the risk of typhoid in three Indonesian islands (Sulawesi, Kalimantan and Papua) in the Eastern Indonesian archipelago encompassing rural, peri-urban and urban areas.
METHODS: We enrolled 933 patients above 10 years of age in a health facility-based case-control study between June 2010 and June 2011. Individuals suspected of typhoid were tested using the typhoid IgM lateral flow assay for the serodiagnosis of typhoid fever followed by blood culture testing. Cases and controls were defined post-recruitment: cases were individuals with a culture or serology positive result (n = 449); controls were individuals negative to both serology and culture, with or without a diagnosis other than typhoid (n = 484). Logistic regression was used to examine the effect of household level and individual level behavioural risk factors and we calculated the population attributable fraction (PAF) of removing each risk significant independent behavioural risk factor.
RESULTS: Washing hands at critical moments of the day and washing hands with soap were strong independent protective factors for typhoid (OR = 0.38 95% CI 0.25 to 0.58 for each unit increase in hand washing frequency score with values between 0 = Never and 3 = Always; OR = 3.16 95% CI = 2.09 to 4.79 comparing washing hands with soap sometimes/never vs. often). These effects were independent of levels of access to water and sanitation. Up to two thirds of cases could be prevented by compliance to these practices (hand washing PAF = 66.8 95% CI 61.4 to 71.5; use of soap PAF = 61.9 95%CI 56.7 to 66.5). Eating food out in food stalls or restaurant was an important risk factor (OR = 6.9 95%CI 4.41 to 10.8 for every unit increase in frequency score).
CONCLUSIONS: Major gains could potentially be achieved in reducing the incidence of typhoid by ensuring adherence to adequate hand-washing practices alone. This confirms that there is a pivotal role for 'software' related interventions to encourage behavior change and create demand for goods and services, alongside development of water and sanitation infrastructure.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2016 |
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Erschienen: |
2016 |
Enthalten in: |
Zur Gesamtaufnahme - volume:11 |
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Enthalten in: |
PloS one - 11(2016), 6 vom: 29., Seite e0155286 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Alba, Sandra [VerfasserIn] |
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Date Completed 27.07.2017 Date Revised 13.02.2019 published: Electronic-eCollection Citation Status MEDLINE |
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doi: |
10.1371/journal.pone.0155286 |
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funding: |
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PPN (Katalog-ID): |
NLM261228412 |
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520 | |a BACKGROUND: Knowledge of risk factors and their relative importance in different settings is essential to develop effective health education material for the prevention of typhoid. In this study, we examine the effect of household level and individual behavioural risk factors on the risk of typhoid in three Indonesian islands (Sulawesi, Kalimantan and Papua) in the Eastern Indonesian archipelago encompassing rural, peri-urban and urban areas | ||
520 | |a METHODS: We enrolled 933 patients above 10 years of age in a health facility-based case-control study between June 2010 and June 2011. Individuals suspected of typhoid were tested using the typhoid IgM lateral flow assay for the serodiagnosis of typhoid fever followed by blood culture testing. Cases and controls were defined post-recruitment: cases were individuals with a culture or serology positive result (n = 449); controls were individuals negative to both serology and culture, with or without a diagnosis other than typhoid (n = 484). Logistic regression was used to examine the effect of household level and individual level behavioural risk factors and we calculated the population attributable fraction (PAF) of removing each risk significant independent behavioural risk factor | ||
520 | |a RESULTS: Washing hands at critical moments of the day and washing hands with soap were strong independent protective factors for typhoid (OR = 0.38 95% CI 0.25 to 0.58 for each unit increase in hand washing frequency score with values between 0 = Never and 3 = Always; OR = 3.16 95% CI = 2.09 to 4.79 comparing washing hands with soap sometimes/never vs. often). These effects were independent of levels of access to water and sanitation. Up to two thirds of cases could be prevented by compliance to these practices (hand washing PAF = 66.8 95% CI 61.4 to 71.5; use of soap PAF = 61.9 95%CI 56.7 to 66.5). Eating food out in food stalls or restaurant was an important risk factor (OR = 6.9 95%CI 4.41 to 10.8 for every unit increase in frequency score) | ||
520 | |a CONCLUSIONS: Major gains could potentially be achieved in reducing the incidence of typhoid by ensuring adherence to adequate hand-washing practices alone. This confirms that there is a pivotal role for 'software' related interventions to encourage behavior change and create demand for goods and services, alongside development of water and sanitation infrastructure | ||
650 | 4 | |a Comparative Study | |
650 | 4 | |a Journal Article | |
700 | 1 | |a Bakker, Mirjam I |e verfasserin |4 aut | |
700 | 1 | |a Hatta, Mochammad |e verfasserin |4 aut | |
700 | 1 | |a Scheelbeek, Pauline F D |e verfasserin |4 aut | |
700 | 1 | |a Dwiyanti, Ressy |e verfasserin |4 aut | |
700 | 1 | |a Usman, Romi |e verfasserin |4 aut | |
700 | 1 | |a Sultan, Andi R |e verfasserin |4 aut | |
700 | 1 | |a Sabir, Muhammad |e verfasserin |4 aut | |
700 | 1 | |a Tandirogang, Nataniel |e verfasserin |4 aut | |
700 | 1 | |a Amir, Masyhudi |e verfasserin |4 aut | |
700 | 1 | |a Yasir, Yadi |e verfasserin |4 aut | |
700 | 1 | |a Pastoor, Rob |e verfasserin |4 aut | |
700 | 1 | |a van Beers, Stella |e verfasserin |4 aut | |
700 | 1 | |a Smits, Henk L |e verfasserin |4 aut | |
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