Trends in chlamydia positivity among heterosexual patients from the Victorian Primary Care Network for Sentinel Surveillance, 2007-2011

Megan Lim, Carol El-Hayek, Jane L Goller, Christopher Fairley, Phuong L T Nguyen, Rochelle A Hamilton, Dorothy Henning, Kathleen Margaret McNamee, Margaret Elena Hellard, Mark Stoove

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Abstract

Objective: To describe trends in chlamydia positivity from 2007 to 2011 among heterosexual people tested for chlamydia at selected clinics that provide services to people at high risk in Victoria, Australia. Design: The Victorian Primary Care Network for Sentinel Surveillance is a prospective system that collates pathology results from laboratories and demographic and behavioural data from a questionnaire. Setting: Two sexual health clinics and six other primary care clinics that target young people and women at high risk. Participants: All clients tested for chlamydia at sentinel clinics. Individuals aged less than 16 years, sex workers, or those reporting any same-sex sexual partners in the past 12 months were excluded from the analysis. Main outcome measures: Chlamydia positivity trends were assessed using three-level random-effects Poisson regression, with clinic and subject treated as nested random factors. Models were offset for total number of tests and adjusted for relevant covariates. Results: Between 2007 and 2011, chlamydia positivity among 31 682 tests in women increased from 5.1 to 6.3 , and positivity among 23 771 tests in men increased from 7.4 to 8.2 . Adjusting for age, country of birth, number of sex partners, condom use, and presence of symptoms, chlamydia positivity increased between 2007 and 2011 significantly among women (incidence rate ratio [IRR], 1.29; 95 CI, 1.11?1.50) and non-significantly among men (IRR, 1.07; 95 CI, 0.92?1.23). Over time, a decrease in reported inconsistent condom use was also observed in both men and women; however, men became more likely to report more than one partner in the past year. Conclusion: We identified a concerning increase in chlamydia positivity over time, particularly among young women.
Original languageEnglish
Pages (from-to)166 - 169
Number of pages4
JournalMedical Journal of Australia
Volume200
Issue number3
DOIs
Publication statusPublished - 2014

Cite this

@article{43f2aea124b84d1eb90d5d1e1cd0a0c3,
title = "Trends in chlamydia positivity among heterosexual patients from the Victorian Primary Care Network for Sentinel Surveillance, 2007-2011",
abstract = "Objective: To describe trends in chlamydia positivity from 2007 to 2011 among heterosexual people tested for chlamydia at selected clinics that provide services to people at high risk in Victoria, Australia. Design: The Victorian Primary Care Network for Sentinel Surveillance is a prospective system that collates pathology results from laboratories and demographic and behavioural data from a questionnaire. Setting: Two sexual health clinics and six other primary care clinics that target young people and women at high risk. Participants: All clients tested for chlamydia at sentinel clinics. Individuals aged less than 16 years, sex workers, or those reporting any same-sex sexual partners in the past 12 months were excluded from the analysis. Main outcome measures: Chlamydia positivity trends were assessed using three-level random-effects Poisson regression, with clinic and subject treated as nested random factors. Models were offset for total number of tests and adjusted for relevant covariates. Results: Between 2007 and 2011, chlamydia positivity among 31 682 tests in women increased from 5.1 to 6.3 , and positivity among 23 771 tests in men increased from 7.4 to 8.2 . Adjusting for age, country of birth, number of sex partners, condom use, and presence of symptoms, chlamydia positivity increased between 2007 and 2011 significantly among women (incidence rate ratio [IRR], 1.29; 95 CI, 1.11?1.50) and non-significantly among men (IRR, 1.07; 95 CI, 0.92?1.23). Over time, a decrease in reported inconsistent condom use was also observed in both men and women; however, men became more likely to report more than one partner in the past year. Conclusion: We identified a concerning increase in chlamydia positivity over time, particularly among young women.",
author = "Megan Lim and Carol El-Hayek and Goller, {Jane L} and Christopher Fairley and Nguyen, {Phuong L T} and Hamilton, {Rochelle A} and Dorothy Henning and McNamee, {Kathleen Margaret} and Hellard, {Margaret Elena} and Mark Stoove",
year = "2014",
doi = "10.5694/mja13.10108",
language = "English",
volume = "200",
pages = "166 -- 169",
journal = "Medical Journal of Australia",
issn = "0025-729X",
publisher = "AMPCo",
number = "3",

}

Trends in chlamydia positivity among heterosexual patients from the Victorian Primary Care Network for Sentinel Surveillance, 2007-2011. / Lim, Megan; El-Hayek, Carol; Goller, Jane L; Fairley, Christopher; Nguyen, Phuong L T; Hamilton, Rochelle A; Henning, Dorothy; McNamee, Kathleen Margaret; Hellard, Margaret Elena; Stoove, Mark.

In: Medical Journal of Australia, Vol. 200, No. 3, 2014, p. 166 - 169.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Trends in chlamydia positivity among heterosexual patients from the Victorian Primary Care Network for Sentinel Surveillance, 2007-2011

AU - Lim, Megan

AU - El-Hayek, Carol

AU - Goller, Jane L

AU - Fairley, Christopher

AU - Nguyen, Phuong L T

AU - Hamilton, Rochelle A

AU - Henning, Dorothy

AU - McNamee, Kathleen Margaret

AU - Hellard, Margaret Elena

AU - Stoove, Mark

PY - 2014

Y1 - 2014

N2 - Objective: To describe trends in chlamydia positivity from 2007 to 2011 among heterosexual people tested for chlamydia at selected clinics that provide services to people at high risk in Victoria, Australia. Design: The Victorian Primary Care Network for Sentinel Surveillance is a prospective system that collates pathology results from laboratories and demographic and behavioural data from a questionnaire. Setting: Two sexual health clinics and six other primary care clinics that target young people and women at high risk. Participants: All clients tested for chlamydia at sentinel clinics. Individuals aged less than 16 years, sex workers, or those reporting any same-sex sexual partners in the past 12 months were excluded from the analysis. Main outcome measures: Chlamydia positivity trends were assessed using three-level random-effects Poisson regression, with clinic and subject treated as nested random factors. Models were offset for total number of tests and adjusted for relevant covariates. Results: Between 2007 and 2011, chlamydia positivity among 31 682 tests in women increased from 5.1 to 6.3 , and positivity among 23 771 tests in men increased from 7.4 to 8.2 . Adjusting for age, country of birth, number of sex partners, condom use, and presence of symptoms, chlamydia positivity increased between 2007 and 2011 significantly among women (incidence rate ratio [IRR], 1.29; 95 CI, 1.11?1.50) and non-significantly among men (IRR, 1.07; 95 CI, 0.92?1.23). Over time, a decrease in reported inconsistent condom use was also observed in both men and women; however, men became more likely to report more than one partner in the past year. Conclusion: We identified a concerning increase in chlamydia positivity over time, particularly among young women.

AB - Objective: To describe trends in chlamydia positivity from 2007 to 2011 among heterosexual people tested for chlamydia at selected clinics that provide services to people at high risk in Victoria, Australia. Design: The Victorian Primary Care Network for Sentinel Surveillance is a prospective system that collates pathology results from laboratories and demographic and behavioural data from a questionnaire. Setting: Two sexual health clinics and six other primary care clinics that target young people and women at high risk. Participants: All clients tested for chlamydia at sentinel clinics. Individuals aged less than 16 years, sex workers, or those reporting any same-sex sexual partners in the past 12 months were excluded from the analysis. Main outcome measures: Chlamydia positivity trends were assessed using three-level random-effects Poisson regression, with clinic and subject treated as nested random factors. Models were offset for total number of tests and adjusted for relevant covariates. Results: Between 2007 and 2011, chlamydia positivity among 31 682 tests in women increased from 5.1 to 6.3 , and positivity among 23 771 tests in men increased from 7.4 to 8.2 . Adjusting for age, country of birth, number of sex partners, condom use, and presence of symptoms, chlamydia positivity increased between 2007 and 2011 significantly among women (incidence rate ratio [IRR], 1.29; 95 CI, 1.11?1.50) and non-significantly among men (IRR, 1.07; 95 CI, 0.92?1.23). Over time, a decrease in reported inconsistent condom use was also observed in both men and women; however, men became more likely to report more than one partner in the past year. Conclusion: We identified a concerning increase in chlamydia positivity over time, particularly among young women.

UR - https://www.mja.com.au/system/files/issues/200_03_170214/lim10108_fm.pdf

U2 - 10.5694/mja13.10108

DO - 10.5694/mja13.10108

M3 - Article

VL - 200

SP - 166

EP - 169

JO - Medical Journal of Australia

JF - Medical Journal of Australia

SN - 0025-729X

IS - 3

ER -