Rapid screening and treatment for sexually transmitted diseases in arrestees: a feasible control measure

HIV, Sexually Transmitted Infection, and Substance Use Continuum of Care Interventions Among Criminal Justice-Involved Black Men Who Have Sex With Men: A Systematic Review

BACKGROUND

Because Black men who have sex with men (BMSM) experience high rates of both HIV and incarceration relative to other groups, the various stages of criminal justice involvement may serve as important intervention points for addressing HIV and related conditions in this group. Although systematic reviews of HIV interventions targeting MSM in general and BMSM in particular exist, no review has explored the range and impact of HIV, sexually transmitted infection (STI), and substance use prevention and care continuum interventions focused on criminal justice-involved (CJI) populations.

OBJECTIVES

To describe the range and impact of published HIV, STI, and related substance use interventions for US-based CJI populations and to understand their relevance for BMSM.

SEARCH METHODS

We conducted systematic searches in the following databases: PubMed, MEDLINE, Cochrane, CINAHL, and PsycINFO, covering the period preceding December 1, 2016.

SELECTION CRITERIA

We selected articles in scientific publications involving quantitative findings for studies of US-based interventions that focused on CJI individuals, with outcomes related to sexual or substance use risk behaviors, HIV, or STIs. We excluded studies if they provided no demographic information, had minimal representation of the population of interest (< 30 African American or Black male or transgender participants), had study populations limited to those aged younger than 18 years, or were limited to evaluations of preexisting programs.

DATA COLLECTION AND ANALYSIS

We abstracted data from these articles on study design; years covered; study location; participant number, demographics, and sexual orientation (if available); criminal justice setting or type; health condition; targeted outcomes; and key findings. We scored studies by using the Downs and Black quality and bias assessment. We conducted linear regression to examine changes in study quality by publication year.

MAIN RESULTS

Fifty-eight articles met inclusion criteria, including 8 (13.8%) modeling or cost-effectiveness studies and 13 (22.4%) randomized controlled trials. Just 3 studies (5.2%) focused on sexual or gender minorities, with only 1 focused on BMSM. In most studies (n = 36; 62.1%), however, more than 50% of participants were Black. The most common intervention addressed screening, including 20 empirical studies and 7 modeling studies. Education-focused interventions were also common (n = 15) and usually employed didactic rather than skill-building approaches. They were more likely to demonstrate increases in HIV testing, knowledge, and condom-use intentions than reductions in sex- and drug-risk behaviors. Screening programs consistently indicated cost-effectiveness, including with BMSM. Care continuum interventions for people living with HIV showed mixed results; just 3 involved randomized controlled trials, and these interventions did not show significant differences compared with control conditions. A minority of programs targeted non-custody-based CJI populations, despite their constituting a majority of the CJI population at any given time.

AUTHORS' CONCLUSIONS

Screening CJI populations for HIV and other STIs is effective and cost-efficient and holds promise for reducing HIV in BMSM. Education-based and care provision interventions also hold promise for addressing HIV, STIs, mental health, and substance use in CJI populations. Additional empirical and modeling studies and results specific to sexual minorities are needed; their paucity represents a disparity in how HIV is addressed. Public Health Implications. HIV and STI screening programs focused on CJI populations should be a priority for reducing HIV risk and numbers of undiagnosed infections among BMSM. Funding agencies and public health leaders should prioritize research to improve the knowledge base regarding which care continuum intervention approaches are most effective for BMSM with criminal justice involvement. Developments in modeling approaches could allow researchers to simulate the impacts and costs of criminal justice involvement-related interventions that might otherwise be cost, time, or ethically prohibitive to study empirically.

Syphilis, human immunodeficiency virus, herpes genital and hepatitis B in a women's prison in Cochabamba, Bolivia: prevalence and risk factors

OBJECTIVE

To determine the prevalence and factors associated with syphilis, human immunodeficiency virus (HIV), hepatitis B (HBV) and herpes type 2 (HSV2) among women in the prison of San Sebastian in Cochabamba (Bolivia).

MATERIAL AND METHODS

We carried out a cross-sectional study including a standardized questionnaire to assess socio-demographics characteristics and risk factors (sexual practices and exposure to blood); and serological tests for syphilis, HSV2, VIH, and HBV. We performed bivariate and multivariate analyses to test the associations between variables of interest and infections.

RESULTS

A total of 219 out of 220 prisoners (99.5%) participated in the study. For syphilis, 12.8% of participants had both reactive tests (RPR+/TPPA+). The prevalence of HSV2 and VIH was 62.6% and 1.4%, respectively. Anti-HBc, indicating a resolved or chronic HBV, was positive in 11.9% of participants and 0.5% had active HBV (HBsAg positive). A low level of education was associated with syphilis, HSV2 and HBV. Having occasional sexual partners was associated with syphilis and HSV2. Being over 36 years old and having more than 3 children were associated with HBV. The number of sexual partners, history of prostitution and rape, having sexual intercourses in prison and detention time were not associated with any of these infections.

DISCUSSION

The prevalence of syphilis, HIV, HSV2 and HBV was higher in this vulnerable female population than in the general population in Bolivia. Control measures in detention are needed to limit the spread of these infections both in prisons and in the community.

Sexually transmitted infections among incarcerated women: findings from a decade of screening in a Los Angeles County Jail, 2002-2012

OBJECTIVES

We describe and report findings from a screening program to identify sexually transmitted infections (STIs) and HIV among female inmates in Los Angeles County Jail.

METHODS

Chlamydia and gonorrhea screening was offered to entering female inmates. Women were eligible if they were (1) aged 30 years or younger, or (2) pregnant or possibly pregnant, or (3) booked on prostitution or sex-related charges. Voluntary syphilis and HIV testing was offered to all women between 2006 and 2009. This analysis reports on data collected from 2002 through 2012.

RESULTS

A total of 76,207 women participated in the program. Chlamydia prevalence was 11.4% and gonorrhea was 3.1%. Early syphilis was identified in 1.4% (141 of 9733) and the overall prevalence of HIV was 1.1% (83 of 7448). Treatment levels for early syphilis and HIV were high (99% and 100%, respectively), but only 56% of chlamydia and 58% of gonorrhea cases were treated.

CONCLUSIONS

Screening incarcerated women in Los Angeles County revealed a high prevalence of STIs and HIV. These inmates represent a unique opportunity for the identification of STIs and HIV, although strategies to improve chlamydia and gonorrhea treatment rates are needed.

Investigating the potential public health benefit of jail-based screening and treatment programs for chlamydia

Observational studies have found mixed results on the impact of jail-based chlamydia screen-and-treat programs on community prevalence. In the absence of controlled trials or prospectively designed studies, dynamic mathematical models that incorporate movements in and out of jail and sexual contacts (including disease transmission) can provide useful information. We explored the impact of jail-based chlamydia screening on a hypothetical community's prevalence with a deterministic compartmental model focusing on heterosexual transmission. Parameter values were obtained from the published literature. Two analyses were conducted. One used national values (large community); the other used values reported among African Americans--the population with the highest incarceration rates and chlamydia burden (small community). A comprehensive sensitivity analysis was carried out. For the large-community analysis, chlamydia prevalence decreased by 13% (from 2.3% to 2.0%), and based on the ranges of parameter values (including screening coverage of 10%-100% and a postscreening treatment rate of 50%-100%) used in the sensitivity analysis, this decrease ranged from 0.1% to 58%. For the small-community analysis, chlamydia prevalence decreased by 54% (from 4.6% to 2.1%). Jail-based chlamydia screen-and-treat programs have the potential to reduce chlamydia prevalence in communities with high incarceration rates. However, the magnitude of this potential decrease is subject to considerable uncertainty.

A systematic review and meta-analysis of the prevalence of chlamydia, gonorrhoea and syphilis in incarcerated persons

Communicable diseases are common in people who are incarcerated. We aimed to define the prevalence of chlamydia, gonorrhoea and syphilis in people who are incarcerated and to identify subgroups with the highest risk of infection. We searched for prevalence studies of chlamydia, gonorrhoea or syphilis in incarcerated populations. Pooled estimates were generated, and meta-regression was conducted. Random effects models yielded pooled prevalence estimates of 5.75% (95% confidence interval [CI] 5.01, 6.48) and 12.31% (95% CI 10.61, 14.01) for chlamydia in men and women, 1.4% (95% CI 1.09, 1.70) and 5.73% (4.76, 6.69) for gonorrhoea in men and women, and 2.45% (95% CI 2.08, 2.82) and 6.10% (95% CI 4.75, 7.46) for syphilis in men and women, respectively. Each infection was associated with female gender in meta-regression models. Chlamydia, gonorrhoea and syphilis are highly prevalent in these populations. Primary and secondary prevention efforts could improve individual and population health.

Needle in a haystack: the yield of syphilis outreach screening at 5 US sites-2000 to 2007

BACKGROUND

Screening for syphilis has been performed for decades, but it is unclear if the practice yields many cases at acceptable cost, and if so, at which venues. We attempted a retrospective study to determine the costs, yield, and feasibility of analyzing health department-funded syphilis outreach screening in 5 diverse US sites with significant disease burdens.

METHODS

Data (venue, costs, number of tests, reactive tests, new diagnoses) from 2000 to 2007 were collected for screening efforts funded by public health departments from Philadelphia; New York City; Washington, District of Columbia; Maricopa County, Arizona (Phoenix); and the state of Florida. Crude cost per new case was calculated.

RESULTS

Screening was conducted in multiple venues including jails, shelters, clubs, bars, and mobile vans. Over the study period, approximately 926 258 tests were performed and 4671 new syphilis cases were confirmed, of which 225 were primary and secondary, and 688 were early latent or high-titer late latent. Jail intake screening consistently identified the largest numbers of new cases (including 67.6% of early and high-titer late-latent cases) at a cost per case ranging from $144 to $3454. Data quality from other venues varied greatly between sites and was often poor.

CONCLUSIONS

Though the yield of jail intake screening was good, poor data quality, particularly cost data, precluded accurate cost/yield comparisons at other venues. Few cases of infectious syphilis were identified through outreach screening at any venue. Health departments should routinely collect all cost and testing data for screening efforts so that their yield can be evaluated.

Prevalence and correlates of Trichomonas vaginalis among incarcerated persons assessed using a highly sensitive molecular assay

We describe the epidemiology of Trichomonas vaginalis (TV) among San Francisco County Jail inmates using APTIMA TV analyte-specific reagents on remnant urine. We detected TV in 15/713 (2.1%) men and 95/297 (32.0%) women. Among women, increased age was significantly associated with TV. The benefits of TV screening should be determined.

STD, HIV/AIDS, and hepatitis services in Illinois County Jails

OBJECTIVE

: To assess the availability of STD, HIV/AIDS, and hepatitis services provided at Illinois adult county jails.

GOAL

: Identify opportunities and barriers to service provision.

STUDY DESIGN

: Telephone survey to those providing medical services in Illinois county jails.

RESULTS

: Eighty-one (89%) of 91 Illinois jails responded. Half (49.3%) of the facilities offered on-site testing for STD, HIV/AIDS, and hepatitis on demand/with symptoms, although only 4 offered routine screening. Discharge planning services were offered in only 40% of facilities. Cost (43.2%) and limited staff (14.8%) were cited as primary barriers to service provision.

CONCLUSIONS

: Screening, treatment, and discharge planning services for STD, HIV/AIDS, and hepatitis are not universal in Illinois jails. Despite current levels of funding and staffing assistance from health departments to jails, further collaboration is needed to improve case identification and treatment in this high-risk population. Needs assessments are useful in identifying opportunities and barriers to service provision.

The impact of discontinuation of male STD screening services at a large urban county jail: Chicago, 2002-2004

BACKGROUND

Before April 2003, all male detainees were offered chlamydia (CT) and gonorrhea (GC) screening tests, after which services were limited to symptom-based testing. In 2003, male screening was discontinued at a large urban county jail.

OBJECTIVE

To evaluate the impact of discontinuing universal male sexually transmitted disease screening in a large county jail.

METHODS

We compared the number of male CT/GC cases during the periods of universal screening (April 2002 to March 2003) with symptom-based testing (April 2003 to March 2004).

RESULTS

The number of reported CT/GC cases among male detainees declined by -91.7% (3329-277) and -90.5% (1133-108), respectively after universal screening was discontinued. Citywide, CT/GC cases among males and females declined by -9.3% (24,885-22,563) and -12.9% (13,249-11,541), respectively.

CONCLUSIONS

Discontinuation of universal male CT/GC screening services at a large county jail represents a missed opportunity to screen a high-risk population and was associated with substantial declines in reported morbidity.

Chlamydia trachomatis and Neisseria gonorrhoeae infections among men and women entering California prisons

OBJECTIVE

We estimated the prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae infection among newly arriving inmates at 6 California prisons.

METHODS

In this cross-sectional study in 1999, urine specimens collected from 698 men aged 18 to 25 years and 572 women aged 18 years or older were tested at intake for C trachomatis and N gonorrhoeae using ligase chain reaction. An analysis of demographic and arrest-related correlates of C trachomatis and N gonorrhoeae infection was performed.

RESULTS

The overall C trachomatis prevalence was 9.9% (95% CI=7.8%, 12.3%) among men aged 18 to 25 years, 8.9% (95% CI = 2.9%, 22.1%) among women aged 18 to 25 years, and 3.3% (95% CI=2.0%, 5.1%) among women overall. Three N gonorrhoeae cases were detected with an overall prevalence of 0.24% (95% CI=0.05%, 0.69%).

CONCLUSIONS

The prevalence of C trachomatis infection at entry to California prisons, especially among young female and male inmates, was high, which supports routine screening at entry into prison. In addition, screening in a jail setting where most detainees are incarcerated before entry into the prison setting may provide an excellent earlier opportunity to identify these infections and treat disease to prevent complications and burden of infection in this high-risk population.

Detection of Chlamydial and Gonococcal Urethral Infection During Jail Intake: Development of a Screening Algorithm

OBJECTIVES

To determine risk factors for chlamydial or gonococcal urethral infection among adult male detainees at Cook County Jail. To develop a screening algorithm with high sensitivity and specificity for detection of urethral infection.

STUDY DESIGN

We interviewed adult male detainees and tested them for chlamydial or gonococcal urethral infection during jail intake from June 24 through July 29, 2004. We supplemented the cross-sectional survey with a nested case-control study.

RESULTS

We screened 5,634 (93%) of 6,028 detainees; 348 (6.2%) had chlamydial or gonococcal urethral infection. Interviews were completed and collected for 35%. By multivariable analysis, infected detainees were more likely to be <31 years of age, have more than 6 sex partners in the previous 12 months, or have symptoms. Age less than 31 years or symptoms would have identified 73% of infected detainees while screening only 50%.

CONCLUSIONS

A simple algorithm that included age and symptoms best identified detainees at increased risk for chlamydial or gonococcal urethral infection.

The Cost Effectiveness of Gonorrhea Screening in Urban Emergency Departments

BACKGROUND

The prevalence of gonorrhea (GC) among adolescent and young women attending some urban emergency departments (EDs) ranges from 1% to 7%, but historically screening has not been logistically practical.

GOAL

The primary goal of the study was to assess the cost effectiveness of GC screening in women ages 15 to 29, seeking care in urban EDs, using noninvasive or rapid point-of-care tests.

STUDY

We developed a state-transition Markov model to compare the net lifetime health consequences, costs, and cost effectiveness of routine ED care (no screening for women without genitourinary symptoms) to GC screening using 1 of 5 detection methods: Gram-stained smears of endocervical swab specimens, urine-based nucleic acid amplification tests (NAATs), NAATs performed on endocervical swabs, rapid immunochromotographic strip test (RIS) performed on clinician-collected vaginal swabs, and RIS on patient-collected vaginal swabs.

RESULTS

Screening women between 15 and 29 years of age using urine-based NAATs prevented 1247 cases of pelvic inflammatory disease (PID) and saved 177 US dollars per patient compared with no screening. Compared with urine-based NAAT, screening with RIS using clinician-obtained vaginal swabs prevented an additional 220 cases of PID and had an incremental cost effectiveness ratio of 6490 US dollars per quality-adjusted life year (QALY). Results were sensitive to assumptions about loss to follow-up, gonorrhea prevalence, and test costs.

CONCLUSION

Screening females aged 15 to 29 for gonorrhea in some urban EDs will prevent substantial reproductive morbidity. Screening with rapid, point-of-care tests is cost effective compared with other well-accepted preventive interventions.

Cost-effectiveness of universal screening for chlamydia and gonorrhea in US jails

Universal screening for the sexually transmitted diseases (STDs) of chlamydia and gonorrhea on intake in jails has been proposed as the most effective strategy to decrease morbidity in inmates and to reduce transmission risk in communities after release. Most inmates come from a population that is at elevated risk for STDs and has limited access to health care. However, limited resources and competing priorities force decision makers to consider the cost of screening programs in comparison to other needs. The costs and cost-effectiveness of universal screening in correctional settings have not been documented. We estimated the incremental cost-effectiveness of universal urine-based screening for chlamydia and gonorrhea among inmates on intake in US jails compared to the commonly used practice of presumptive treatment of symptomatic inmates without laboratory testing. Decision analysis models were developed to estimate the cost-effectiveness of screening alternatives and were applied to hypothetical cohorts of male and female inmates. For women, universal screening for chlamydia only was cost-saving to the health care system, averting more health care costs than were incurred in screening and treatment. However, for men universal chlamydia screening cost $4,856 more per case treated than presumptive treatment. Universal screening for both chlamydia and gonorrhea infection cost the health care system $3,690 more per case of pelvic inflammatory disease averted for women and $650 more per case of infection treated for men compared to universal screening for chlamydia only. Jails with a high prevalence of chlamydia and gonorrhea represent an operationally feasible and cost-effective setting to universally test and treat women at high risk for STDs and with limited access to care elsewhere.

The vulnerability of Brazilian female prisoners to HIV infection

The purpose of the present study was to determine the vulnerability of women in prison to HIV infection. The study was carried out from August to October 2000 in a São Paulo State Penitentiary, where 299 female prisoners were serving time. We interviewed and obtained a blood sample from 290 females who agreed to enter the study. Sera were tested for the presence of antibodies to HIV, hepatitis C virus (HCV) and syphilis and the odds ratio (OR) was calculated for variables related to HIV positivity on the basis of a questionnaire. The overall prevalence data were: 13.9% for HIV (37 of 267), 22.8% for syphilis (66 of 290), and 16.2% for HCV (47 of 290). Sexual partnership variables were significantly related to HIV infection. These included HIV-positive partners (OR = 7.36, P = 0.0001), casual partners (OR = 8.96, P = 0.009), injectable drug user partners (OR = 4.7, P = 0.0001), and history of sexually transmitted disease (OR = 2.07, P = 0.05). In addition, a relationship was detected between HIV infection and drug use (OR = 2.48, P = 0.04) and injectable drug use (OR = 4.2, P = 0.002). Even women with only one partner presented a significant OR for HIV infection (OR = 2.57, P = 0.009), reflecting their vulnerability due to their trust in their partner, who did not use a condom. Although the use of injectable substances is associated with HIV infection, our results point to sexual behavior as the most important component of HIV transmission in the female prisoner population.

Asymptomatic sexually transmitted diseases: the case for screening

BACKGROUND

The United States has the highest prevalence of sexually transmitted diseases in the developed world. Control strategies should address the most frequent reasons why curable sexually transmitted diseases are not treated.

METHODS

We approached 1,631 persons ages 18-29 in various sites and offered them screening for gonorrhea and chlamydial infection and surveys regarding past genitourinary symptoms. For those with past symptoms we abstracted medical records or conducted additional interviews. From these data we estimated the total number of persons who had gonorrhea or chlamydial infections in the previous year, the proportion treated, and the primary reasons for nontreatment.

RESULTS

The prevalence of gonorrhea was 2.3% and that of chlamydial infection was 10.1%. We estimate that 45 and 77% of all cases of gonorrhea and chlamydial infection, respectively, were never symptomatic and that 86 and 95% of untreated cases of gonorrhea and chlamydial infection, respectively, were untreated because they were never symptomatic. The remaining 14 and 5% of untreated cases of gonorrhea and chlamydia, respectively, were not treated because persons did not receive medical care for symptoms.

CONCLUSIONS

The primary reason that gonorrhea and chlamydial infections are untreated is that infected persons never have symptoms. The most effective method to control these sexually transmitted diseases is routine screening at high-volume sites.

Effectiveness of a mobile medical van in providing screening services for STDs and HIV

This retrospective study assesses the efficacy of a mobile medical van in screening high risk individuals and identifying new cases of HIV and other sexually transmitted diseases (STDs) in an urban setting from July 1996 through March 1997. High risk sex and drug use were common, while consistent condom use was rare. Relatively few patients were screened for STDs; positive cases represented only a small proportion of the STD cases identified in the study community. The mobile program, however, accounted for 11.5% of all HIV tests conducted at public test sites in the city. Mobile medical programs have the potential to improve STD and HIV control efforts by providing services to high risk individuals who may lack access to care elsewhere. Doing so, however, will require more active case finding techniques, including new, less invasive techniques to test asymptomatic individuals.

Screening for syphilis in arrestees: usefulness for community-wide syphilis surveillance and control

BACKGROUND

Syphilis screening of jail arrestees has been promoted as an effective method for both disease control and surveillance.

GOALS

To evaluate the yield of the East Baton Rouge Parish Jail screening program in detecting previously undiagnosed syphilis, to evaluate the program as a means for monitoring community syphilis rates, and to characterize arrestees at greatest risk for syphilis infection.

STUDY DESIGN

From July 1994 to December 1998, arrestees brought to the East Baton Rouge Parish Jail were screened for syphilis. Annual early syphilis prevalence in screened arrestees was calculated and compared with the annual period prevalence of early syphilis in the general population of East Baton Rouge Parish, as reported by laboratories and health providers. A case-control study of cases detected at the jail from 1995 to 1997 and contemporary controls was conducted.

RESULTS

A total of 50,941 arrestees were booked into the East Baton Rouge Parish Jail, of whom 38,573 (76%) were screened for syphilis. Of the 38,573 arrestees screened, 494 (1.3%) were diagnosed with untreated syphilis. Of these, 299 (61%) were treated for syphilis before release. The estimated prevalence of early syphilis in arrestees decreased by 68% during the study period, from 0.79% in 1994 to 0.25% in 1998. During this time, the East Baton Rouge Parish community rates decreased by 79%, from 150 cases per 100,000 to 31 cases per 100,000. In female arrestees, a booking charge of prostitution was associated with syphilis (odds ratio [OR] 7.0; 95% CI, 1.5, 39.3). In male arrestees, a booking charge of felony theft was associated with syphilis (OR 4.8; 95% CI, 1.8, 13.8). However, only 15 (12%) of the early syphilis cases would have been detected if screening had been based on the booking charges found to be associated with syphilis in this study.

CONCLUSIONS

Routine syphilis screening and treatment in jail settings is feasible and identifies many persons with syphilis. Monitoring of syphilis prevalence among arrestees is a useful method for monitoring community prevalence of syphilis. Analysis of booking charges may be useful for determining factors associated with syphilis infection, but not for developing screening criteria.

[HIV, HPV, and syphilis prevalence in a women's penitentiary in the city of São Paulo, 1997-1998]

Incarcerated women as a group are particularly vulnerable to infections. The lack of public programs for prevention, early diagnosis, and treatment contribute to the increase in the incidence and prevalence of diseases in general and especially sexually transmitted diseases. This article aims to estimate the prevalence of infection by the human immunodeficiency virus (HIV), human papillomavirus (HPV), and syphilis among inmates at the Women's Penitentiary in the State capital of São Paulo, Brazil. All inmates were invited to participate in the study, which was divided into two stages: 1. STD/AIDS preventive workshops including interviews and 2. laboratory tests. The interview covered knowledge of STD/AIDS, risk behavior, and individual reproductive health history. A total of 262 women, with a mean age of 32.4 years and limited schooling, participated in more than one stage of the study. Prevalence rates were 14.5% for HIV, 16.3% for high-oncogenic-risk HPV probes, 4.8% for low-oncogenic-risk HPV probes, and 5.7% for syphilis. The authors conclude that STD/HIV constitute a serious health problem in the prison system, requiring urgent preventive measures.

An outbreak of syphilis in Alabama prisons: correctional health policy and communicable disease control

OBJECTIVES

After syphilis outbreaks were reported at 3 Alabama State men's prisons in early 1999, we conducted an investigation to evaluate risk factors for syphilis infection and describe patterns of syphilis transmission.

METHODS

We reviewed medical, patient interview, and prison transfer records and documented sexual networks. Presumptive source cases were identified. Odds of exposure to unscreened jail populations and transfer from other prisons were calculated for case patients at 1 prison.

RESULTS

Thirty-nine case patients with early syphilis were identified from 3 prisons. Recent jail exposure (odds ratio [OR] = 8.0, 95% confidence interval [CI] = 0.3, 158.7, P = .14) and prison transfer (OR = 32.0, 95% CI = 1.6, 1668.1, P < .01) were associated with being a source case patient.

CONCLUSIONS

Probable sources of syphilis introduction into and transmission within prisons included mixing of prisoners with unscreened jail populations, transfer of infected inmates between prisons, and multiple concurrent sexual partnerships. Reducing sexual transmission of disease in correctional settings is a public health priority and will require innovative prevention strategies.

Sexually transmitted diseases among female prisoners in Brazil: prevalence and risk factors

BACKGROUND

Sexually transmitted diseases (STDs) have become an important medical problem in prisons.

GOAL

To determine the prevalence of and risk factors for STDs among female inmates in a Brazilian prison.

STUDY DESIGN

All female prisoners at the Espírito Santo State Prison were offered enrollment in this cross-sectional study. An interview exploring demographics, criminal charges, and risk behavior was conducted. Blood and genital specimens were collected for STD testing.

RESULTS

Of 122 eligible women, 121 (99%) agreed to participate. Prevalence rates were: HIV 9.9%, human T-cell lymphotrophic virus type I 4.1%, hepatitis B virus 7.4%, hepatitis C virus 19%, syphilis 16%, gonorrhea 7.6%, chlamydial infection 11%, human papillomavirus-related cytologic changes 9.3%, trichomoniasis 30%, and bacterial vaginosis 15%. Previous or current drug abuse (54%), injection drug use (11%), and blood transfusion (16%) were associated with at least one STD. Condom use was infrequent.

CONCLUSION

The prevalence of STDs and of behaviors leading to ongoing transmission are high among female inmates in Vitória, Brazil, and demonstrate the potential importance of prevention activities targeting this population.

Effectiveness and cost-benefit of enhancements to a syphilis screening and treatment program at a county jail

BACKGROUND

High rates of syphilis are found in inmates of county jails. Treatment of this infected transient population necessitated the development of a rapid protocol.

GOAL

To evaluate a rapid screening and treatment protocol for syphilis in a county jail.

STUDY DESIGN

Over a 2-year period 18,442 inmates were screened for syphilis with a nontreponemal test and record search for treatment history. Confirmatory test results were reviewed following treatment. Cost was defined as deflated marginal outlays. Benefit was calculated as the discounted expected cost of treatment of congenital, late, and neurosyphilis.

RESULTS

The sensitivity, specificity, and positive predictive value of the protocol were 99.6%, 80.8%, and 79.3%, respectively. Of 257 confirmed cases, 183 were offered treatment in jail. The percentage of short-term inmates treated increased following implementation. The cost-benefit ratio was 9.14:1.

CONCLUSIONS

The protocol was highly effective in patient identification and treatment delivery, and cost-effective as well.

Strategies for syphilis prevention: findings from surveys in a high-incidence area

BACKGROUND

The persistence of syphilis in the United States suggests that a better understanding is needed of the potential for various public health approaches to prevent the spread of the disease.

STUDY DESIGN

The authors conducted surveys of 92 persons with early syphilis, 56 uninfected sexual contacts, and 143 neighborhood controls in the Baton Rouge, Louisiana area. The surveys collected information regarding sexual behavior, access to and use of healthcare services, encounters at sites at which serologic screening for syphilis could be done, and exposure to interventions designed to prevent HIV infection.

RESULTS

All groups reported high-risk sexual behavior. Cases and contacts were more likely than controls to report two or more sex partners in the previous year, but the three groups were similar in the percentage reporting five or more sex partners. Cases had poor access to health care and by some measures this access was less than that of controls. The potential screening site visited most frequently by cases was the public hospital emergency room (40%). Cases were less likely to have been exposed to programs designed to prevent HIV infection than uninfected contacts and controls combined (odds ratios, 0.51-0.66).

CONCLUSIONS

Persons with syphilis were not unlike others in their neighborhoods, suggesting that syphilis is a sentinel event that indicates an entire neighborhood is at risk. Improvements in access to health care for sexually transmitted disease-related symptoms, screening in sites such as public hospital emergency rooms, and emphasizing sexual risk-reduction interventions may limit the spread of syphilis in these neighborhoods. To prevent syphilis in the long term, public health programs should also try to better understand and change other community-level socioeconomic factors that influence sexual behavior.

Arrest and detention in international travelers

BACKGROUND

Our objective was to examine the characteristics of international travelers from Canada who have been arrested or detained while abroad, and to review the health implications of incarceration.

METHOD

An EpiInfo 6 program was created to analyse all of the Consular reports received in 1995 via the Secure Integrated Global Network (SIGNET) which provides communications and computerization services to the Department of Foreign Affairs and International Trade, Canada. The Consular Management and Operations System was designed to support the delivery of consular services by the Department, and to link Headquarters in Ottawa with missions in other countries through case management files, including a "Prisoners" file. Information obtained included personal demographics (age, gender), date, country, and reason for arrest or detention, and outcome of judicial process.

RESULTS

There were 1, 086 arrest or detention reports received from Consular services via SIGNET in 1995. Males outnumbered females 5.6:1. Most individuals arrested were young: 57.5% were less than 40 years, and 79% were less than 50 years. Drug related charges were cited in 33.1% of all cases, with 52.8% of arrested females charged with drug related offenses. The documented conviction rate was 96%. The majority of detained Canadian travelers were held in countries within the Americas (791 cases - 69.2%), with 642 (59.1%) being detained in the USA.

CONCLUSIONS

Arrest and detention is an unusual occurrence for international travelers but relative youth, male gender, and female drug couriers were identifiable risk characteristics. Public awareness campaigns can be targeted to specific population demographics, but all international travelers need to be counseled on the consequences of transgressing laws in foreign countries.

The use of epidemiologic mass treatment and syndrome management for sexually transmitted disease control

BACKGROUND

Epidemiologic mass treatment and syndrome management are two sexually transmitted disease (STD) control strategies that are receiving increased attention internationally. The former is a population-based intervention, whereas the latter attempts to improve the quality and efficiency of clinic-based STD case management.

METHODS

The published literature on these subjects was reviewed.

RESULTS

Epidemiologic mass treatment refers to treatment of whole communities (mass treatment) or high-risk subgroups within communities (targeted presumptive treatment) based on high STD prevalence rates. Syndrome management overcomes many obstacles to provision of quality STD case management by basing treatment decisions on recognition of easily identifiable syndromes. Experience with application of these strategies is summarized, and their possible use as STD control measures in communities with similar conditions is discussed.

CONCLUSIONS

Epidemiologic mass treatment may be an effective approach to rapidly reduce STD transmission in high prevalence communities, especially when high-risk core groups are effectively reached. Once high prevalence rates are brought down, however, longer term strategies, including improved STD case management, are essential to maintain reduced rates.

Evaluation of the Gen-Probe PACE 2 assay for the detection of asymptomatic Chlamydia trachomatis and Neisseria gonorrhoeae infections in male arrestees

BACKGROUND

The LET and Gen-Probe PACE 2 assay are used to screen male arrestees for evidence of infection with chlamydia and gonorrhea in the intake/booking area of the Jefferson Parish Correctional Center.

GOAL OF THIS STUDY

To determine the accuracy of the Gen-Probe PACE 2 assay for the detection of asymptomatic infection with Chlamydia trachomatis and Neisseria gonorrhoeae infections in male arrestees.

STUDY DESIGN

From December 1993 to March 1994, 196 arrestees younger than 22 years were screened with the Gen-Probe PACE 2 assay and McCoy shell vial culture for Chlamydia trachomatis. From April to October 1994, 444 arrestees of all ages were screened with the Gen-Probe PACE 2 assay and standard culture for Neisseria gonorrhoeae. The sensitivity, specificity, and predictive values of the Gen-Probe PACE 2 assay, compared with culture, were calculated with 95% confidence intervals.

RESULTS

The Gen-Probe PACE 2 assay compared with culture had a sensitivity, specificity, and positive predictive value for Chlamydia trachomatis of 84%, 99%, and 93% and for Neisseria gonorrhoeae of 54%, 99.5%, and 78%.

CONCLUSION

The Gen-Probe PACE 2 assay is useful for screening young males in this jail setting and is more accurate for detecting Chlamydia trachomatis compared with Neisseria gonorrhoeae.

Reappraising the value of urine leukocyte esterase testing in the age of nucleic acid amplification

BACKGROUND

The leukocyte esterase (LE) test has a limited role in determination of empiric therapy for male patients screened for urethritis because of its poor positive predictive value in low (< 5%) prevalence settings. The recent advent of nucleic acid amplification testing of first-void urine (FVU) has dramatically increased the ease with which widespread screening for Chlamydia trachomatis and Neisseria gonorrhoeae can be performed, but the costs of such testing may be prohibitive. The LE test may therefore have a role in management of urethritis because of its high negative predictive value.

OBJECTIVES

To determine the sensitivity, specificity, and positive and negative predictive value of LE testing for the diagnosis of N. gonorrhoeae and C. trachomatis in male FVU specimens in a low-prevalence urban setting using a commercial polymerase chain reaction (PCR) as the gold standard.

METHODS

Data were obtained on men presenting to an urban sexually transmitted disease clinic over a 16-month period. Patients were included if an FVU had been tested for the presence of LE using a rapid dipstick, read by an automated urine analyzer, and the sample (either an FVU or urethral swab) had then been processed for the detection of N. gonorrhoeae and C. trachomatis by PCR.

RESULTS

Of 301 assessable patients, there were 14 cases of gonorrhoea, 21 cases of chlamydia, and 1 case of dual infection detected by PCR. Most men (245/301; 81.4%) were asymptomatic, of whom 12 of 245 (4.9%) had an infection detected compared with 24 of 56 (42.9%) in the symptomatic men (P < 0.001). Using a "< or = trace" cutoff, the overall value for the sensitivity of the LE test was 77.8% (95% confidence interval, 60.4-89.3), specificity 80.8% (75.4-85.2), positive predictive value 35.4% (25.2-47.1), and negative predictive value 96.4% (92.8-98.3).

CONCLUSIONS

The negative predictive value of the LE test may be of use in determining which patients should proceed to specific diagnosis by nucleic amplification methods (e.g., PCR or ligase chain reaction). By limiting testing to patients with positive LE results, cost savings may be made, enabling the technology to be used in a wider community setting. The value of the LE test in higher prevalence populations with access to nucleic amplification testing remains to be established.