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Open Access Research article

Chlamydial infection among patients attending STD and genitourinary clinics in Taiwan

Kow-Tong Chen1*, Shou-Chien Chen23, Chien-Chou Chiang4, Lan-Hui Li4 and Li-Hui Tang5

Author Affiliations

1 Department of Public Health, College of Medicine, National Cheng- Kung University, Tainan, Taiwan

2 Department of Bioengineering, Tatung University, Tiapei, Taiwan

3 Department of Family Medicine, Zhongxiao Branch, Taipei City Hospital, Taipei, Taiwan

4 Taipei City STD Control Center, Taipei, Taiwan

5 Center for Disease Control, Department of Health, Taipei, Taiwan

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BMC Public Health 2007, 7:120  doi:10.1186/1471-2458-7-120

Published: 25 June 2007

Abstract

Background

The main objective of this study is to examine the epidemiology of Chlamydia trachomatis (CT) infection amongst patients (473 men, 180 women) seen two hospitals in Taiwan.

Methods

Between July 2004 and June 2005, a total of 653 patients provided first-void urine samples for examination of CT using PCR assay.

Results

The overall prevalence of CT infection was 18.4% (95% confidence interval [CI] 17.3–19.5). Prevalence for men and women were 16.7 % (95% CI 15.3–18.0%) and 22.8% (95% CI 17.5–28.1%), respectively. Age group-specific prevalence was 25.7% (95% CI 22.5–28.9%) in < 20 year olds, 23.5% (95% CI 20.3–26.7%) in 20–24 year olds, 22.3% (95% CI 18.9–25.7%) in 25–30 year olds, and 11.5% (95% CI 10.3–12.7%) in > 30 year olds. Independent risk factors for chlamydial infection included younger age (aged ≤ 30 years) (adjusted odds ratio [AOR] = 2.44; 95% CI 1.52–3.84; p < 0.001), inconsistent condom use (AOR = 2.01; 95% CI 1.32–3.06; p < 0.001), being symptomatic (dysuria, urethral discharge) at the time of testing (AOR = 1.84; 95% CI 1.21–2.80; p < 0.001), and having N. gonorrhoeae infection (AOR = 3.82; 95% CI 2.20–6.58; p < 0.001).

Conclusion

Genital chlamydial infection is an important sexually transmitted disease in Taiwan. Young Taiwanese persons attending a STD clinic should be screened for CT infection and counselled on condom use.