SURROGATE METHODS TO DIAGNOSE GONOCOCCAL AND CHLAMYDIAL CERVICITIS - COMPARISON OF LEUKOCYTE ESTERASE DIPSTICK, ENDOCERVICAL GRAM STAIN, AND CULTURE

被引:19
作者
KNUDHANSEN, CR
DALLABETTA, GA
REICHART, C
PABST, KM
HOOK, EW
WASSERHEIT, JN
机构
[1] NIAID, STD BRANCH,WESTWOOD BLDG,ROOM 749, 9000 ROCKVILLE PIKE, BETHESDA, MD 20892 USA
[2] CALBOT CTY HLTH DEPT, EASTON, MD USA
[3] JOHNS HOPKINS UNIV, SCH MED, BALTIMORE, MD 21218 USA
[4] JOHNS HOPKINS UNIV, SCH HYG & PUBL HLTH, BALTIMORE, MD 21218 USA
关键词
D O I
10.1097/00007435-199110000-00003
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
This study compared leukocyte esterase dipsticks (LED) and endocervical Gram stains (EGS) as surrogates for culture diagnosis of gonococcal and chlamydial cervicitis in 495 STD clinic patients. Overall, gonorrhea prevalence was 15.7%; chlamydia prevalence (in the subgroup that was tested) was 17.8%. In diagnosing gonorrhea, LED and EGS performed similarly, with sensitivities of 68% and 76%, respectively, and identical specificities of 44%. In diagnosing gonococcal or chlamydial cervicitis, LED and EGS sensitivities fell to 48% and 47%, respectively, whereas specificities increased to 55% and 75%. These data suggest that, although both tests are imperfect surrogates for gonococcal and chlamydial culture, LED sacrifices little in sensitivity compared with EGS. Because LED does not require ancillary supplies, equipment, electricity, or trained personnel, its use may be feasible when Gram-stain diagnosis is impossible. Modifications of LED technology and specimen preparation should be sought to improve LED performance.
引用
收藏
页码:211 / 216
页数:6
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