Incident Chlamydia trachomatis infections among inner-city adolescent females

Research output: Contribution to journalArticle

Abstract

Context. - Adolescents are at highest risk for infection with Chlamydia trachomatis, an important preventable cause of pelvic inflammatory disease and subsequent tubal factor infertility in US women. Current guidelines for delivery of adolescent primary care services recommend yearly chlamydia screening for those adolescent females considered to be at risk. Objectives. - To describe the epidemiology of prevalent and incident chlamydia infection among adolescent females to assess the appropriate interval for chlamydia screening and to define risk factors that would identify adolescent females to target for screening. Design. - Prospective longitudinal study. Patients. - A consecutive sample of 3202 sexually active females 12 through 19 years old making 5360 patient visits over a 33-month period, January 1994 through September 1996. Setting. - Baltimore, Md, family planning, sexually transmitted disease, and school-based clinics. Intervention. - Testing for C trachomatis by polymerase chain reaction. Main Outcome Measures. - Prevalence and incidence of C trachomatis infections; predictors of positive test result for C trachomatis. Results. - Chlamydia infection was found in 771 first visits (24.1%) and 299 repeat visits (13.9%); 933 adolescent females (29.1%) had at least 1 positive test result. Females who were 14 years old had the highest age-specific chlamydia prevalence rate (63 [27.5%] of 229 cases; P=.01). The chlamydia incidence rate was 28.0 cases per 1000 person-months (95% confidence interval, 24.9-31.5 cases). The median time was 7.2 months to a first positive chlamydia test result and 6.3 months to a repeat positive test result among those with repeat visits. Independent predictors of chlamydia infection - reason for clinic visit, clinic type, prior sexually transmitted diseases, multiple or new partners, or inconsistent condom use - failed to identify a subset of adolescent females with the majority of infections. Conclusions. - A high prevalence and incidence of C trachomatis infection were found among adolescent females. We, therefore, recommend screening all sexually active adolescent females for chlamydia infection every 6 months, regardless of symptoms, prior infections, condom use, or multiple partner risks.

Original languageEnglish (US)
Pages (from-to)521-526
Number of pages6
JournalJournal of the American Medical Association
Volume280
Issue number6
DOIs
StatePublished - Aug 12 1998

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Chlamydia Infections
Chlamydia trachomatis
Chlamydia
Infection
Condoms
Sexually Transmitted Diseases
Incidence
Pelvic Inflammatory Disease
Baltimore
Sexual Partners
Family Planning Services
Ambulatory Care
Infertility
Longitudinal Studies
Primary Health Care
Epidemiology
Outcome Assessment (Health Care)
Prospective Studies
Guidelines
Confidence Intervals

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Incident Chlamydia trachomatis infections among inner-city adolescent females. / Burstein, Gale R.; Gaydos, Charlotte A; Diener-West, Marie; Rene Howell, M.; Zenilman, Jonathan Mark; Quinn, Thomas C.

In: Journal of the American Medical Association, Vol. 280, No. 6, 12.08.1998, p. 521-526.

Research output: Contribution to journalArticle

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abstract = "Context. - Adolescents are at highest risk for infection with Chlamydia trachomatis, an important preventable cause of pelvic inflammatory disease and subsequent tubal factor infertility in US women. Current guidelines for delivery of adolescent primary care services recommend yearly chlamydia screening for those adolescent females considered to be at risk. Objectives. - To describe the epidemiology of prevalent and incident chlamydia infection among adolescent females to assess the appropriate interval for chlamydia screening and to define risk factors that would identify adolescent females to target for screening. Design. - Prospective longitudinal study. Patients. - A consecutive sample of 3202 sexually active females 12 through 19 years old making 5360 patient visits over a 33-month period, January 1994 through September 1996. Setting. - Baltimore, Md, family planning, sexually transmitted disease, and school-based clinics. Intervention. - Testing for C trachomatis by polymerase chain reaction. Main Outcome Measures. - Prevalence and incidence of C trachomatis infections; predictors of positive test result for C trachomatis. Results. - Chlamydia infection was found in 771 first visits (24.1{\%}) and 299 repeat visits (13.9{\%}); 933 adolescent females (29.1{\%}) had at least 1 positive test result. Females who were 14 years old had the highest age-specific chlamydia prevalence rate (63 [27.5{\%}] of 229 cases; P=.01). The chlamydia incidence rate was 28.0 cases per 1000 person-months (95{\%} confidence interval, 24.9-31.5 cases). The median time was 7.2 months to a first positive chlamydia test result and 6.3 months to a repeat positive test result among those with repeat visits. Independent predictors of chlamydia infection - reason for clinic visit, clinic type, prior sexually transmitted diseases, multiple or new partners, or inconsistent condom use - failed to identify a subset of adolescent females with the majority of infections. Conclusions. - A high prevalence and incidence of C trachomatis infection were found among adolescent females. We, therefore, recommend screening all sexually active adolescent females for chlamydia infection every 6 months, regardless of symptoms, prior infections, condom use, or multiple partner risks.",
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