Incidence rate and risk factors for giardiasis and strongyloidiasis in returning UK travellers
© International Society of Travel Medicine, 2016. All rights reserved. Published by Oxford University Press. For permissions, please e-mail: journals.permissionsoup.com..
BACKGROUND: Few studies have investigated incidence rate and risk factors for giardiasis and strongyloidiasis in returning UK travellers. The clinical presentations of these two diseases are often similar and difficult to distinguish. This study was conducted to investigate the incidence rate and the risk factors for symptomatic giardiasis and strongyloidiasis in returned tropical travellers.
METHODS: We retrospectively analysed 3306 consecutive attendances presenting to the emergency clinic at the Hospital for Tropical Diseases in London, the UK from September 2008 to May 2010. Odds ratios between the diagnoses and patient variables were analysed by logistic regression.
RESULTS: Giardiasis was diagnosed in 92/3306 cases (2.8%, proportionate morbidity), and the incidence rate per 1000 person-months was 12.5. Multivariate analysis with logistic regression revealed that Caucasian ethnicity (adjusted odds ratio (aOR): 2.37, 95% confidence interval (CI): 1.12-5.03, P value = 0.025), travel length ≥32 days (aOR: 2.63, 95%CI: 1.43-4.83, P = 0.002), travelling to South or South East Asia (aOR: 4.90, 95%CI: 2.03-11.8, P < 0.001, aOR: 3.36, 95%CI: 1.43-7.93, P = 0.006), afebrile presentation (aOR: 2.14, 95%CI: 1.14-4.03, P = 0.018), and presenting with gastro-intestinal symptoms (aOR: 14.6, 95%CI: 6.08-35.0, P < 0.001) were all associated with giardiasis. In contrast, strongyloidiasis was found only in 0.94% (proportionate morbidity) of the cases (31/3306), and the incidence rate per 1000 person-months was 3.1. Multivariate analysis revealed that male sex (aOR: 3.05, 95%CI: 1.36-6.85, P = 0.007), and non-Caucasian ethnicity (aOR: 2.69, 95%CI: 1.32-5.49, P = 0.007) were associated with strongyloidiasis.
CONCLUSIONS: The incidence rate and risk factors for both infectious diseases were identified. The results of this study might guide clinicians to make more accurate and timely diagnoses in returned tropical travellers.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2016 |
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| Erschienen: |
2016 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:23 |
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| Enthalten in: |
Journal of travel medicine - 23(2016), 5 vom: 18. Mai |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Takaoka, Kensuke [VerfasserIn] |
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| Links: |
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| Themen: |
Anti-Bacterial Agents |
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| Anmerkungen: |
Date Completed 14.03.2017 Date Revised 18.05.2017 published: Electronic-Print Citation Status MEDLINE |
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| doi: |
10.1093/jtm/taw050 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM262567962 |
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| 245 | 1 | 0 | |a Incidence rate and risk factors for giardiasis and strongyloidiasis in returning UK travellers |
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| 520 | |a © International Society of Travel Medicine, 2016. All rights reserved. Published by Oxford University Press. For permissions, please e-mail: journals.permissionsoup.com. | ||
| 520 | |a BACKGROUND: Few studies have investigated incidence rate and risk factors for giardiasis and strongyloidiasis in returning UK travellers. The clinical presentations of these two diseases are often similar and difficult to distinguish. This study was conducted to investigate the incidence rate and the risk factors for symptomatic giardiasis and strongyloidiasis in returned tropical travellers | ||
| 520 | |a METHODS: We retrospectively analysed 3306 consecutive attendances presenting to the emergency clinic at the Hospital for Tropical Diseases in London, the UK from September 2008 to May 2010. Odds ratios between the diagnoses and patient variables were analysed by logistic regression | ||
| 520 | |a RESULTS: Giardiasis was diagnosed in 92/3306 cases (2.8%, proportionate morbidity), and the incidence rate per 1000 person-months was 12.5. Multivariate analysis with logistic regression revealed that Caucasian ethnicity (adjusted odds ratio (aOR): 2.37, 95% confidence interval (CI): 1.12-5.03, P value = 0.025), travel length ≥32 days (aOR: 2.63, 95%CI: 1.43-4.83, P = 0.002), travelling to South or South East Asia (aOR: 4.90, 95%CI: 2.03-11.8, P < 0.001, aOR: 3.36, 95%CI: 1.43-7.93, P = 0.006), afebrile presentation (aOR: 2.14, 95%CI: 1.14-4.03, P = 0.018), and presenting with gastro-intestinal symptoms (aOR: 14.6, 95%CI: 6.08-35.0, P < 0.001) were all associated with giardiasis. In contrast, strongyloidiasis was found only in 0.94% (proportionate morbidity) of the cases (31/3306), and the incidence rate per 1000 person-months was 3.1. Multivariate analysis revealed that male sex (aOR: 3.05, 95%CI: 1.36-6.85, P = 0.007), and non-Caucasian ethnicity (aOR: 2.69, 95%CI: 1.32-5.49, P = 0.007) were associated with strongyloidiasis | ||
| 520 | |a CONCLUSIONS: The incidence rate and risk factors for both infectious diseases were identified. The results of this study might guide clinicians to make more accurate and timely diagnoses in returned tropical travellers | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a giardiasis | |
| 650 | 4 | |a incidence | |
| 650 | 4 | |a multivariate analysis | |
| 650 | 4 | |a risk factor | |
| 650 | 4 | |a strongyloidiasis | |
| 650 | 4 | |a travel medicine | |
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| 700 | 1 | |a Hart, John D |e verfasserin |4 aut | |
| 700 | 1 | |a Armstrong, Margaret |e verfasserin |4 aut | |
| 700 | 1 | |a Daniel, Amanda |e verfasserin |4 aut | |
| 700 | 1 | |a Mewse, Emma |e verfasserin |4 aut | |
| 700 | 1 | |a Phillips, Diana |e verfasserin |4 aut | |
| 700 | 1 | |a Bailey, Robin L |e verfasserin |4 aut | |
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