Selective screening for chlamydial infection: Which criteria to use?

被引:42
作者
Miller, WC
Hoffman, IF
Owen-O'Dowd, J
McPherson, JT
Privette, A
Schmitz, JL
Woodlief, G
Leone, PA
机构
[1] Univ N Carolina, Sch Med, Dept Med, Chapel Hill, NC USA
[2] Univ N Carolina, Sch Med, Dept Microbiol, Chapel Hill, NC USA
[3] Univ N Carolina, Dept Epidemiol, Sch Publ Hlth, Chapel Hill, NC 27599 USA
[4] Dept Hlth & Human Serv, Raleigh, NC USA
[5] Wake Cty Hlth Dept, Raleigh, NC USA
关键词
Chlamydia trachomatis; chlamydial infections; mass screening; ligases; sexually transmitted disease; family planning;
D O I
10.1016/S0749-3797(99)00146-4
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
Background: Screening sexually active women for Chlamydia trachomatis is necessary to detect asymptomatic infections. Selective screening is a common strategy because universal screening is too costly in many settings. In order to guide local programs in the choice of selective screening criteria, we examined the performance of previously proposed screening criteria for C trachomatis. Methods: A clinic-based, cross-sectional study was conducted in public family planning and sexually transmitted disease (STD) clinics in ten counties in North Carolina. Women (n = 4471 in family planning and n = 2201 in STD clinics) undergoing pelvic examination were enrolled consecutively. Nine sets of screening criteria, including age alone, were compared using sensitivity, specificity, number of tests required and receiver-operator characteristic (ROC) analysis. All women underwent testing with ligase chain reaction assay of cervical specimens to identify C trachomatis infection. Results: The prevalence of C trachomatis was 7.8% and 11.0% in family planning and STD clinics, respectively. The sensitivities of published criteria ranged from 0.50 to 0.97. Specificities ranged from 0.05 to 0.66. In family planning clinics, the best performing criteria would detect 84% of infections while screening 51% of women. In STD clinics, the same criteria would detect 83% of infections but require testing 67% of women. Testing women aged less than or equal to 22 would detect 77% of infections in family planning and 74% of infections in STD clinics, while testing 51% and 48% of the women, respectively. Conclusions: When site-specific criteria cannot be developed, age alone is an acceptable strategy for selective screening for chlamydial infection.
引用
收藏
页码:115 / 122
页数:8
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