Higher Chlamydia trachomatis prevalence in ethnic minorities does not always reflect higher sexual risk behaviour.

BACKGROUND: In affluent countries, the prevalence of Chlamydia trachomatis (CT) is often higher in certain ethnic minorities than in the majority population. In The Netherlands, we examined why CT prevalence is higher in Surinamese/Antilleans, the largest minority in the country. METHODS: Heterosexu...

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Main Authors: Amy Matser, Nancy Luu, Ronald Geskus, Titia Heijman, Marlies Heiligenberg, Maaike van Veen, Maarten Schim van der Loeff
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2013-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC3682972?pdf=render
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author Amy Matser
Nancy Luu
Ronald Geskus
Titia Heijman
Marlies Heiligenberg
Maaike van Veen
Maarten Schim van der Loeff
author_facet Amy Matser
Nancy Luu
Ronald Geskus
Titia Heijman
Marlies Heiligenberg
Maaike van Veen
Maarten Schim van der Loeff
author_sort Amy Matser
collection DOAJ
description BACKGROUND: In affluent countries, the prevalence of Chlamydia trachomatis (CT) is often higher in certain ethnic minorities than in the majority population. In The Netherlands, we examined why CT prevalence is higher in Surinamese/Antilleans, the largest minority in the country. METHODS: Heterosexuals were recruited for a cross-sectional survey from May through August 2010 at the sexually transmitted infections (STI) clinic in Amsterdam. Participants completed a questionnaire and were tested for STI. A causal directed acyclic graph was assumed to investigate whether the association between ethnicity and CT could be explained by differences in sexual risk behaviour and socio-economic status. RESULTS: Subjects included 1044 with Dutch background and 335 with Surinamese/Antillean background. Median age for the combined population was 25 (IQR 22-30) years, and 55.4% was female. Sexual risk behaviour did not differ significantly between the two groups. CT was diagnosed in 17.9% of Surinamese/Antilleans and in 11.4% of Dutch. Surinamese/Antilleans were significantly more likely to have CT (OR 1.70; 95% CI 1.21-2.38). The association between ethnicity and CT remained statistically significant after adjusting for sexual risk behaviour, age, sex, and ethnic mixing (aOR 1.48; 95% CI 1.00-2.18), but not after adjusting for education and neighbourhood, markers of socio-economic status (aOR 1.08; 95% CI 0.71-1.64). CONCLUSION: The difference in CT prevalence between the minority and majority groups was not explained by differences in sexual risk behaviour. The higher CT prevalence found among Surinamese/Antilleans appeared to reflect their lower educational level and neighbourhood, two markers of lower socio-economic status. We hypothesise that the effect results from lower health-seeking behaviour.
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spelling doaj.art-519488b8227e426981e62566b4fedde22022-12-22T00:16:55ZengPublic Library of Science (PLoS)PLoS ONE1932-62032013-01-0186e6728710.1371/journal.pone.0067287Higher Chlamydia trachomatis prevalence in ethnic minorities does not always reflect higher sexual risk behaviour.Amy MatserNancy LuuRonald GeskusTitia HeijmanMarlies HeiligenbergMaaike van VeenMaarten Schim van der LoeffBACKGROUND: In affluent countries, the prevalence of Chlamydia trachomatis (CT) is often higher in certain ethnic minorities than in the majority population. In The Netherlands, we examined why CT prevalence is higher in Surinamese/Antilleans, the largest minority in the country. METHODS: Heterosexuals were recruited for a cross-sectional survey from May through August 2010 at the sexually transmitted infections (STI) clinic in Amsterdam. Participants completed a questionnaire and were tested for STI. A causal directed acyclic graph was assumed to investigate whether the association between ethnicity and CT could be explained by differences in sexual risk behaviour and socio-economic status. RESULTS: Subjects included 1044 with Dutch background and 335 with Surinamese/Antillean background. Median age for the combined population was 25 (IQR 22-30) years, and 55.4% was female. Sexual risk behaviour did not differ significantly between the two groups. CT was diagnosed in 17.9% of Surinamese/Antilleans and in 11.4% of Dutch. Surinamese/Antilleans were significantly more likely to have CT (OR 1.70; 95% CI 1.21-2.38). The association between ethnicity and CT remained statistically significant after adjusting for sexual risk behaviour, age, sex, and ethnic mixing (aOR 1.48; 95% CI 1.00-2.18), but not after adjusting for education and neighbourhood, markers of socio-economic status (aOR 1.08; 95% CI 0.71-1.64). CONCLUSION: The difference in CT prevalence between the minority and majority groups was not explained by differences in sexual risk behaviour. The higher CT prevalence found among Surinamese/Antilleans appeared to reflect their lower educational level and neighbourhood, two markers of lower socio-economic status. We hypothesise that the effect results from lower health-seeking behaviour.http://europepmc.org/articles/PMC3682972?pdf=render
spellingShingle Amy Matser
Nancy Luu
Ronald Geskus
Titia Heijman
Marlies Heiligenberg
Maaike van Veen
Maarten Schim van der Loeff
Higher Chlamydia trachomatis prevalence in ethnic minorities does not always reflect higher sexual risk behaviour.
PLoS ONE
title Higher Chlamydia trachomatis prevalence in ethnic minorities does not always reflect higher sexual risk behaviour.
title_full Higher Chlamydia trachomatis prevalence in ethnic minorities does not always reflect higher sexual risk behaviour.
title_fullStr Higher Chlamydia trachomatis prevalence in ethnic minorities does not always reflect higher sexual risk behaviour.
title_full_unstemmed Higher Chlamydia trachomatis prevalence in ethnic minorities does not always reflect higher sexual risk behaviour.
title_short Higher Chlamydia trachomatis prevalence in ethnic minorities does not always reflect higher sexual risk behaviour.
title_sort higher chlamydia trachomatis prevalence in ethnic minorities does not always reflect higher sexual risk behaviour
url http://europepmc.org/articles/PMC3682972?pdf=render
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AT ronaldgeskus higherchlamydiatrachomatisprevalenceinethnicminoritiesdoesnotalwaysreflecthighersexualriskbehaviour
AT titiaheijman higherchlamydiatrachomatisprevalenceinethnicminoritiesdoesnotalwaysreflecthighersexualriskbehaviour
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AT maaikevanveen higherchlamydiatrachomatisprevalenceinethnicminoritiesdoesnotalwaysreflecthighersexualriskbehaviour
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