| asymptomatic chlamydia trachomatis infections in teenage males. | this study examined the prevalence of chlamydia trachomatis infections of the urethra in asymptomatic teenage males in a juvenile detention setting. gonorrhea cultures, chlamydia smears using the direct immunofluorescent antibody (dfa) technique, and 15-20 ml of a first-catch urine (fcu) sample were obtained. of the 227 adolescent males screened, 205 had experienced sexual intercourse. twenty-seven (13.2%) of the sexually active adolescents had positive dfa smears for c. trachomatis. three (1.5% ... | 1988 | 3335475 |
| major outer membrane protein variants of chlamydia trachomatis are associated with severe upper genital tract infections and histopathology in san francisco. | cervical and endometrial samples from 33 women with lower genital tract infection (lgti) or pelvic inflammatory disease (pid) were evaluated for chlamydia trachomatis major outer membrane protein gene (omp1) polymorphism. polymorphism was correlated with symptoms, clinical findings, and histopathology. f, e, i, d, h, k, and g genotypes were represented. thirty-seven genotyped samples (66%) displayed omp1 mutations compared with prototype sequences. significantly, 7 of 7 women with variant f infe ... | 1995 | 7561174 |
| patient-delivered therapy for chlamydia: putting research into practice. | in 2001 california state lawmakers authorized patient-delivered therapy for sex partners of patients with chlamydial infection. several studies have suggested that patient-delivered therapy is effective in the treatment of infected partners. | 2003 | 12782952 |
| chlamydia trachomatis among patients infected with and treated for neisseria gonorrhoeae in sexually transmitted disease clinics in the united states. | for two decades, treatment guidelines for sexually transmitted diseases (stds) have recommended empirical co-treatment for chlamydia when patients are treated for gonorrhea. because the epidemiology of and diagnostic testing for stds have changed over time, co-treatment may no longer be needed as a clinical or public health strategy. | 2003 | 12899585 |
| to screen or not to screen: prevalence of c. trachomatis among sexually active asymptomatic male adolescents attending health maintenance pediatric visits. | this study estimated the prevalence of chlamydia trachomatis (ct) among sexually active, asymptomatic, multiethnic adolescent males attending preventive health maintenance visits at pediatric clinics within a large health maintenance organization. first-void urines of sexually active 14-18-year-old males were screened for ct. the ct infection rate was 4% (27/711), 95% ci = 2.5%, 5.5%. | 2004 | 14967338 |
| do people really know their sex partners? concurrency, knowledge of partner behavior, and sexually transmitted infections within partnerships. | an individual's risk of sexually transmitted infections (stis) has been associated empirically with the individual having concurrent sexual partners (individual's concurrency) and, theoretically, with the individual's partner having concurrent partners (partner's concurrency). | 2004 | 15215701 |
| time to treatment for women with chlamydial or gonococcal infections: a comparative evaluation of sexually transmitted disease clinics in 3 us cities. | many women with positive screening tests for chlamydia or gonorrhea are not promptly treated and are at risk for complications and further disease transmission. improved methods for notifying infected patients might increase timely treatment in this population. | 2005 | 15729159 |
| chlamydia trachomatis and neisseria gonorrhoeae prevalence and coinfection in adolescents entering selected us juvenile detention centers, 1997-2002. | juvenile detention centers offer public health practitioners an opportunity to gain access to large numbers of adolescents at risk for chlamydia and gonorrhea. | 2005 | 15788927 |
| slow epidemic of lymphogranuloma venereum l2b strain. | we traced the chlamydia trachomatis l2b variant in amsterdam and san francisco. all recent lymphogranuloma venereum cases in amsterdam were caused by the l2b variant. this variant was also present in the 1980s in san francisco. thus, the current "outbreak" is most likely a slowly evolving epidemic. | 2005 | 16318741 |
| home sti testing: the adolescent female's opinion. | to assess sexually active adolescent females' attitudes of home tests for sexually transmitted infections. | 2004 | 15581525 |
| chlamydia screening of youth and young adults in non-clinical settings throughout california. | urine-based chlamydia tests enable screening in non-clinical settings. | 2004 | 15215695 |
| limitations of screening tests for the detection of chlamydia trachomatis in asymptomatic adolescent and young adult women. | the purpose of this study was to examine the performance of different test types, specimen sources, and collection methods for screening of genital chlamydia trachomatis infection in young women. | 2004 | 15041995 |
| risk factors for chlamydia trachomatis infection in a california collegiate population. | chlamydia trachomatis infection in college students has not undergone a detailed large-scale evaluation. the authors undertook a cross-sectional study of 4,086 students enrolled on the campuses of california state university, sacramento, and 3 local community colleges from fall 2000 through spring 2002. they used an outreach screening model to determine the presence of infection by testing urine for chlamydial dna by polymerase chain reaction. participants completed demographic and behavioral ri ... | 2003 | 14765760 |
| clinical management of chlamydia and gonorrhea infection in a county teaching emergency department--concerns in overtreatment, undertreatment, and follow-up treatment success. | to date, several studies have examined overtreatment or undertreatment of neisseria gonorrheae, chlamydia trachomatis, or both in women. however, no study has looked at both subpopulations together, along with eventual treatment of disease-positive patients who were not empirically treated. this study is unique, for it looks at all of these subpopulations to assess overall efficacy of management of these diseases in women. a 1-year prospective, descriptive study was performed in a teaching count ... | 2003 | 12865101 |
| sexually transmitted diseases and risk behaviors among california farmworkers: results from a population-based survey. | the prevalence of sexually transmitted diseases and associated risk behaviors among california farmworkers is not well described. | 2008 | 18643805 |
| effect of a clinical practice improvement intervention on chlamydial screening among adolescent girls. | chlamydia trachomatis infection is a serious public health concern that disproportionately affects adolescent girls. although annual c trachomatis screening of sexually active adolescent girls is recommended by health professional organizations and is a health employer data and information set (hedis) performance measure, this goal is not being met. | 2002 | 12472326 |
| chlamydia trachomatis in older los angeles county residents, 1991-1998: implications and recommendations for the detection of sexually transmitted infections in older age groups. | this study examined the incidence and implications of reported chlamydia cases in los angeles county residents aged 50 and older. | 2002 | 12383154 |
| screening for asymptomatic chlamydia infections among sexually active adolescent girls during pediatric urgent care. | to develop and evaluate an intervention to increase chlamydia trachomatis (ct) screening among sexually active adolescent girls during pediatric urgent care. | 2009 | 19487613 |
| disease reporting from an automated laboratory-based reporting system to a state health department via local county health departments. | the authors assessed the completeness of disease reporting from a managed care organization's automated laboratory-based reporting system to the california department of health services (cdhs) via local public health departments. | 2001 | 12034915 |
| chlamydial infection and unplanned pregnancy in women with ready access to health care. | to apply urine-based ligase chain reaction for chlamydia trachomatis (c. trachomatis) and neisseria gonorrhoeae (n. gonorrhoeae) detection and standard urine-based pregnancy testing for navy-enlisted women, and to compare the prevalence and epidemiologic correlates of these adverse reproductive outcomes. | 2001 | 11755563 |
| knock-knock: a population-based survey of risk behavior, health care access, and chlamydia trachomatis infection among low-income women in the san francisco bay area. | to estimate the prevalence of urogenital chlamydial infection among young, low-income women in northern california and to describe correlates of infection, a population-based door-to-door household cluster survey was conducted from 1996 through 1998. the participants included 1439 women 18-29 years of age, with a mean age of 24 years, most of whom were african american (43%) or latina (23%) and had a median income of $500-$999 per month. most (94%) had received health care in the past year, and ... | 2001 | 11237834 |
| performance of the gen-probe amplified chlamydia trachomatis assay in detecting chlamydia trachomatis in endocervical and urine specimens from women and urethral and urine specimens from men attending sexually transmitted disease and family planning clinics. | the gen-probe amplified chlamydia trachomatis assay (amp ct) uses transcription-mediated amplification and hybridization protection assay procedures to qualitatively detect chlamydia trachomatis rrna in urine, endocervical swab, and urethral specimens. the performance of the amp ct was compared to that of cell culture for endocervical swab and urine specimens from women and urethral and urine specimens from men. analysis of specimens with discrepant results was performed by a combination of recu ... | 1998 | 9774570 |
| the effectiveness of patient-delivered partner therapy and chlamydial and gonococcal reinfection in san francisco. | patient-delivered partner therapy (pdpt) has been evaluated in randomized trials. no analysis has examined the impact of pdpt once implemented programmatically. | 2010 | 20502392 |
| chlamydia trachomatis infection among hispanic women in the california-mexico border area, 1993: establishing screening criteria in a primary care setting. | chlamydia prevalence and transmission patterns in california-mexico border communities are unknown, and selective screening strategies for hispanic populations have not been evaluated. | 1995 | 8578402 |
| chlamydia prevalence and screening practices--san diego county, california, 1993. | chlamydia trachomatis is the most common bacterial sexually transmitted disease in the united states and causes an estimated 4 million infections annually. approximately 70% of infected women have few or no symptoms, and asymptomatic infection in women can persist for up to 15 months. infection can progress to involve the upper reproductive tract and may result in serious complications. to identify women who may have chlamydial infections, cdc has recommended routine testing based on age, risk b ... | 1994 | 8183228 |
| the role of medicaid managed care interventions in chlamydia screening by physicians. | : chlamydia trachomatis (ct) guidelines call for annual screening of all sexually active young females. in previous studies, medicaid health maintenance organizations (hmos) did not consistently recommend ct and other sexually transmitted disease guidelines, but physicians with hmo practices were more likely to comply with guidelines than those without hmo practices. this study examines the relationship between hmo interventions and physician adherence to annual (ct) screening guidelines for sex ... | 2011 | 21233791 |
| chlamydia trachomatis isolation in a symptomatic university student population. | in a study of 638 women attending a university student health service outpatient gynecologic clinic, their symptoms were either lower genital tract infection or a history of suspected exposure to sexually transmitted diseases. forty-two (6.6%) harbored chlamydia trachomatis, four (0.8%) neisseria gonorrhoeae, and one (0.2%) both of these organisms. chlamydia-positive patients were more likely to be using a contraceptive method, have multiple partners, and have partners with symptoms of urethriti ... | 1984 | 6546317 |
| chlamydia trachomatis: important relationships to race, contraception, lower genital tract infection, and papanicolaou smear. | chlamydia trachomatis is a common cause of sexually transmitted disease in adolescent girls. of 366 adolescent patients screened, 15.3% were found to have chlamydial endocervical infections, with an infection rate of 23.3% in blacks, 14.3% in hispanics, and 10.3% in whites (p = 0.01, excess for blacks). of chlamydia-positive patients, 63.6% had a diagnosis of lower genital tract infection, compared with 35.4% of chlamydia-negative patients (p = 0.004). oral contraceptive users had a higher preva ... | 1984 | 6546309 |
| detection of chlamydial cervicitis with papanicolaou-stained smears and cultures in a university student population. | over a 34-month period, 12,647 papanicolaou smears were obtained from a student health service outpatient gynecologic population at moderate risk of chlamydial infection. we found 287 (2.3%) to have cytologic features suggestive of chlamydial cervicitis. chlamydia trachomatis was definitely isolated by endocervical culture in only 4.5% of these 287 subjects. cytologic features suggestive of chlamydial cervicitis were found to be unreliable in diagnosing chlamydial infection. | 1987 | 3585868 |
| asymptomatic chlamydia infection in pregnant women. | chlamydia trachomatis infection is currently among the most prevalent sexually transmitted diseases in the united states. a review of three textbooks of obstetrics reveals that none of them recommend routine chlamydia screening in prenatal patients, although two recommend routine screening for gonorrhea. a study was done at the barberton citizens hospital family practice residency program to determine the incidence of asymptomatic chlamydia infection in pregnant women and to compare this to the ... | 1989 | 2601940 |
| chlamydia trachomatis urethritis in university men: risk factors and rates. | this study reports the rates of chlamydia trachomatis genital infection in two groups of university men. one hundred twenty-seven came to the student health center with genitourinary complaints, and 29 were identified as the sexual partners of women with chlamydia infections. evidence of chlamydial infection was found in 29 (22.8 percent) of those presenting with complaints and in 6 (20.7 percent) who were contacts of chlamydia-infected women. comparison of all symptomatic patients with sexually ... | 1990 | 2185610 |
| human papillomavirus infection in sexually active adolescent females: prevalence and risk factors. | we examined the prevalence of human papillomavirus (hpv) infection, and associated risk factors for infection with hpv types 6, 11, 16, 18, 31, 33, and 35, in 661 sexually active adolescent females attending family planning clinics. fifteen percent were positive for hpv dna by rna-dna dot-blot hybridization. more than 60% of the hpv-positive subjects harbored at least one of the following cancer-related hpv types: 16, 18, 31, 33, or 35. those with hpv had a mean range of four to 10 lifetime sexu ... | 1990 | 2175024 |
| chlamydia trachomatis infection in women: a need for universal screening in high prevalence populations? | chlamydia trachomatis is the most prevalent sexually transmitted bacterial pathogen. nevertheless, selective, rather than universal, screening for chlamydia has been recommended, largely because testing is expensive and requires considerable technical expertise. a total of 1,348 women in four family planning clinics in san francisco, california, were screened from march 1987 to january 1988 to identify criteria for selective screening. of these, 9.2% had a positive chlamydia test using direct fl ... | 1992 | 1736659 |
| chlamydia trachomatis and neisseria gonorrhoeae infections among men and women entering california prisons. | we estimated the prevalence of chlamydia trachomatis and neisseria gonorrhoeae infection among newly arriving inmates at 6 california prisons. | 2006 | 17008584 |
| patient-delivered partner therapy for chlamydial infections: attitudes and practices of california physicians and nurse practitioners. | the objective of this study was to examine california clinicians' use of and attitudes toward patient-delivered partner therapy (pdpt) to treat sexual partners of patients infected with chlamydia. | 2006 | 16794548 |
| examination of the treatment and follow-up care for adolescents who test positive for chlamydia trachomatis infection. | to document the comprehensive management of chlamydia trachomatis infections in sexually active 14- to 19-year-old adolescents. | 2005 | 16330741 |
| screening sexually active adolescents for chlamydia trachomatis: what about the boys? | we sought to determine the effectiveness of a systems-based intervention designed to increase chlamydia trachomatis (ct) screening among adolescent boys. | 2005 | 16186459 |
| youth united through health education: building capacity through a community collaborative intervention to prevent hiv/std in adolescents residing in a high std prevalent neighborhood. | the early detection and treatment of stds is an effective strategy for slowing the sexual transmission of hiv. the goal of the yuthe (youth united through health education) program, a collaborative effort between the san francisco department of public health (sfdph) and the university of california, san francisco, is to increase sexually transmitted disease screening and treatment among adolescents in a neighborhood with a high incidence of stds in san francisco. youth health educators residing ... | 2005 | 16178706 |
| chlamydial screening in urgent care visits: adolescent-reported acceptability associated with adolescent perception of clinician communication. | to examine the association between adolescents' perception of clinician communication and adolescents' reported acceptability of the steps involved in chlamydial screening during urgent care visits. | 2007 | 17679660 |
| california guidelines for expedited partner therapy for chlamydia trachomatis and neisseria gonorrhoeae. | in california, medical providers have the option to provide expedited partner therapy (ept) for chlamydia trachomatis and neisseria gonorrhoeae. california law was amended in 2001 and 2007 to allow physicians to prescribe, and nurse practitioners, physician assistants, and certified nurse-midwives to dispense, antibiotic therapy for the sex partners of individuals infected with chlamydia and gonorrhea, even if they have not been able to perform an examination of the patient's partner(s).in colla ... | 2008 | 18166849 |
| association of insurance coverage with chlamydia screening. | to examine the rates of self-reported chlamydia trachomatis (ct) screening among young women and to examine the independent association of type of insurance and specific health plans with these rates. | 2008 | 18402512 |
| implementing chlamydia screening programs in juvenile correctional settings: the california experience. | to present strategies, methods, and tools for implementing a chlamydia screening program across diverse county juvenile justice systems in california, and to present screening and treatment outcomes of this program. | 2009 | 18449073 |
| lifetime interpersonal violence and self-reported chlamydia trachomatis diagnosis among california women. | to examine the relationship between cumulative exposure to various types of interpersonal violence throughout the life span and self-reported history of chlamydia trachomatis (ct) diagnosis in a population-based sample of california women. | 2009 | 19105689 |
| evaluation of self-collected glans and rectal swabs from men who have sex with men for detection of chlamydia trachomatis and neisseria gonorrhoeae by use of nucleic acid amplification tests. | self-collected glans and rectal swab specimens from men who have sex with men (msm) may be appropriate, convenient specimens for testing. we evaluated the use of self-collected swabs for the detection of chlamydia trachomatis and neisseria gonorrhoeae by a transcription-mediated amplification test (ac2; aptima combo 2; gen-probe inc.) and a strand displacement amplification test (sda; probetec; becton dickinson co.) in msm seen at the city sexually transmitted disease clinic in san francisco, ca ... | 2009 | 19369445 |
| clinic-based testing for rectal and pharyngeal neisseria gonorrhoeae and chlamydia trachomatis infections by community-based organizations--five cities, united states, 2007. | cdc recommends screening of at-risk men who have sex with men (msm) at least annually for urethral and rectal gonorrhea and chlamydia, and for pharyngeal gonorrhea. although the standard method for diagnosis is culture, nucleic acid amplification (naa) testing is generally more sensitive and favored by most experts. naa tests have not been cleared by the food and drug administration (fda) for the diagnosis of extragenital chlamydia or gonorrhea and may not be marketed for that purpose. however, ... | 2009 | 19590491 |
| relative efficiency of chlamydia screening in non-clinical settings in two california counties. | we examined the relative efficiency of non-clinical sites to screen for chlamydia in youth and young adults. chlamydia screening targeting youth (under 30 years of age) was performed at non-clinical sites in high-morbidity neighbourhoods of two california counties. venues were subdivided into community outreach, schools, parenting centres and drug treatment/correctional facilities. relative efficiency was estimated with multivariate poisson regression using incidence of chlamydia per person-hour ... | 2010 | 20029065 |
| denial of risk behavior does not exclude asymptomatic anorectal sexually transmitted infection in hiv-infected men. | the centers for disease control recommend screening for asymptomatic sexually transmitted infection (sti) among hiv-infected men when there is self-report of unprotected anal-receptive exposure. the study goals were: (1) to estimate the validity and usefulness for screening policies of self-reported unprotected anal-receptive exposure as a risk indicator for asymptomatic anorectal infection with neisseria gonorrhoeae (gc) and/or chlamydia trachomatis (ct). (2) to estimate the number of infection ... | 2009 | 20041143 |
| retesting for repeat chlamydial infection: family planning provider knowledge, attitudes, and practices. | repeated genital infections with chlamydia trachomatis are common and associated with serious adverse reproductive sequelae in women such as infertility, ectopic pregnancy, and chronic pelvic pain. retesting for repeat chlamydial infection is recommended 3 months after treatment for an initial infection; however, retesting rates in various settings are low. in order to design interventions to increase retesting rates, understanding provider barriers and practices around retesting is crucial. the ... | 2010 | 20482236 |
| chlamydia screening in non-clinical settings. | | 2010 | 20606230 |
| sports preparticipation examination to screen college athletes for chlamydia trachomatis. | this study assessed the prevalence of chlamydia trachomatis in the college athlete and the benefit of using the sports preparticipation examination (ppe) as a screening opportunity. | 2010 | 21099757 |
| Repeating Low-Positive Nucleic Acid Amplification Test Results for Chlamydia trachomatis and Neisseria gonorrhoeae: Assessment of Current Practice in Selected California Public and Private-Sector Laboratories. | Routine repeat testing of specimens with a low-positive result for Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC) by nucleic acid amplification test (NAAT) is not recommended (5) because 1) the majority of positive specimens that are negative on confirmatory testing are true positives, and 2) infected patients will go untreated.… | 2011 | 22116148 |
| Evaluation of self-collected versus clinician-collected swabs for the detection of Chlamydia trachomatis and Neisseria gonorrhoeae pharyngeal infection among men who have sex with men. | We evaluated self-sampling to detect pharyngeal Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infection among men who have sex with men attending a San Francisco STD clinic. The prevalence of pharyngeal NG and CT infection was 6.7% (32/480) and 1.3% (6/480), respectively. The percent agreement between self-collected and clinician-collected NG and CT specimens using nucleic acid amplification testing was 96.6% with a ? of 0.766 (95% confidence interval: 0.653-0.879) and 99.4% with a ? ... | 2011 | 21992980 |
| there's no place like home: first-year use of the "i know" home testing program for chlamydia and gonorrhea. | in response to high chlamydia and gonorrhea morbidity, particularly among young african american and latina women, the los angeles county department of public health launched a free home testing program for chlamydia trachomatis and neisseria gonorrhoeae. the primary objectives were to increase chlamydia and gonorrhea testing by removing key barriers and to motivate young women to screen routinely for these sexually transmitted diseases (stds). the program was promoted with a social marketing ca ... | 2013 | 23327247 |