Patrick Chaulk

Public health clinic-based hepatitis C testing and linkage to care in baltimore

Testing and linkage to care are important determinants of hepatitis C virus (HCV) treatment effectiveness. Public health clinics serve populations at high risk of HCV. We investigated their potential to serve as sites for HCV testing, initiation of and linkage to HCV care. Cross‐sectional study of patients accessing sexually transmitted infection (STI) care at the Baltimore City Health Department (BCHD) STI clinics, from June 2013 through April 2014 was conducted. Logistic regression was used to assess factors associated with HCV infection and specialist linkage to care. Between 24 June 2013 and 15 April 2014, 2681 patients were screened for HCV infection. Overall, 189 (7%) were anti‐HCV positive, of whom 185 (98%) received follow‐up HCV RNA testing, with 155 (84%) testing RNA positive. Of 155 RNA‐positive individuals, 138 (89%) returned to the STI clinic for HCV RNA results and initial HCV care including counselling regarding transmission and harm reduction in alcohol, and 132 (85%) were referred to a specialist for HCV care. With provision of patient navigation services, 81 (52%) attended an offsite HCV specialist appointment. Alcohol use and lack of insurance coverage were associated with lower rates of specialist linkage (OR 0.4 [95% CI 0.1–0.9] and OR 0.4 [95% CI 0.1–0.9], respectively). We identified a high prevalence of HCV infection in BCHD STI clinics. With availability of patient navigation services, a large proportion of HCV‐infected patients linked to off‐site specialist care.

High rates of abscesses and chronic wounds in community-recruited injection drug users and associated risk factors.

Objectives:Abscesses and chronic wounds are common among injection drug users (IDUs) though chronic wounds have been understudied. We assessed the risk factors associated with both acute and chronic wounds within a community-based population of IDUs frequenting the Baltimore City Needle Exchange Program (BNEP). Methods:We performed a cross-sectional study of BNEP clients aged 18 years or more who completed an in-person survey regarding active or prior wounds including abscesses (duration <8 weeks) and chronic wounds (duration ≥8 weeks), injection practices, and skin care. Factors associated with wounds were analyzed using univariate and multivariate logistic regressions. Results:Of the 152 participants, 63.2% were men, 49.3% were white, 44.7% were African American, 34.9% had any type of current wound, 17.8% had an active abscess, and 19.7% had a current chronic wound. Abscesses were more common in women (odds ratio [OR], 2.56; 95% confidence interval [CI], 1.10-5.97) and those reporting skin-popping (OR, 5.38; 95% CI, 1.85-15.67). In a multivariate model, risk factors for an abscess included injecting with a family member/partner (adjusted OR [AOR], 4.06; 95% CI, 0.99-16.58). In a multivariable analysis of current chronic wounds, cleaning skin with alcohol before injection was protective (AOR, 0.061; 95% CI, 0.0064-0.58). Conclusions:Abscesses and chronic wounds were prevalent among a sample of IDUs in Baltimore. Abscesses were associated with injection practices, and chronic wounds seemed linked to varying skin and tool cleaning practices. There is a pressing need for wound-related education and treatment efforts among IDUs who are at greatest risk for skin-related morbidity.

Postarrival Tuberculosis Screening of High-Risk Immigrants at a Local Health Department

OBJECTIVES We sought to characterize postimmigration tuberculosis (TB) care for Class B immigrants and refugees at the Baltimore City Health Department TB program (BCHD), and to determine the proportion of immigrants with active TB or latent TB infection (LTBI) in this high-risk population. METHODS We conducted a retrospective chart review of Class B immigrants and refugees who reported to the BCHD for postimmigration TB evaluation from 2010 to 2012. RESULTS We reviewed the clinical records of 153 Class B immigrants; 4% were diagnosed with active TB and 53% were diagnosed with LTBI. Fifty percent of active TB cases were culture positive, and 67% were asymptomatic; 100% received and completed active TB therapy at the BCHD. Among those diagnosed with LTBI, 87% initiated LTBI therapy and 91% completed treatment. CONCLUSIONS The high prevalence of active TB and LTBI found among Class B immigrants underscore the importance for postarrival TB screening. The absence of reported symptoms among the majority of active cases identified during this study suggest that reliance on symptom-based screening protocols to prompt sputa testing may be inadequate for identifying active TB among this high-risk group.

Comparison of chronic wound culture techniques: swab versus curetted tissue for microbial recovery

Health-care professionals are increasingly relying on wound cultures as part of their clinical assessment. Tissue viability nurses in the UK use wound swabbing as the standard specimen-taking technique, but others are used globally and there is no worldwide standard. This study compares two wound culture techniques in uninfected chronic wounds of active and former injection drug users seeking care through a civic needle exchange mobile wound clinic. For each wound, two sampling approaches were applied during the same visit: swab culture and curetted tissue culture. A total of 12 chronic wounds were assessed among 9 patients, including 19 swab cultures and 19 tissue cultures. These 38 cultures grew a total of 157 individually identified bacterial organisms, including 27 anaerobic organisms (17.2%), 63 Gram-positive species (40.1%), and 67 Gram-negative species (42.7%). The swab technique yielded a greater percentage recovery rate of anaerobic (55.6%), Gram-positive (52.4%), and all species (51.6%) compared to tissue culture (P>0.05). Recovery of common wound species, such as methicillin-sensitive Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, and Pseudomonas aeruginosa was the same using either method (50.0%). Swab and curetted tissue cultures yielded similar recovery rates for common wound bacteria. Therefore, swabs (including a vacuum transport container) may offer an advantage in the recovery of anaerobes. Based upon this analysis, the swabbased culture method for chronic wounds currently used in the UK is reasonable.

Wounds on Wheels: Implementing a Specialized Wound Clinic within an Established Syringe Exchange Program in Baltimore, Maryland

People who inject drugs (PWID) experience a high incidence of abscesses and chronic wounds. However, many PWID delay seeking care for their wounds. In 2012, the Baltimore Needle Exchange Program (BNEP) in Baltimore, Maryland, partnered with the Johns Hopkins Wound Healing Center to establish a mobile BNEP Wound Clinic. This clinic provided specialized wound care for BNEP patients. In sixteen months, the clinic treated 78 unique patients during 172 visits overall. On average, each visit cost the program

Sex Partner Meeting Places Over Time Among Newly HIV-Diagnosed Men Who Have Sex With Men in Baltimore, Maryland.

146.45, which was substantially less than clinic-based treatment. This program demonstrates that specialized wound care can be effectively provided through mobile outreach. A community-based service delivery approach might serve as a model for local health departments looking to improve the health of PWID.

Consequences of a restrictive syringe exchange policy on utilisation patterns of a syringe exchange program in Baltimore, Maryland: Implications for HIV risk

Background Sex partner meeting places may be important locales to access men who have sex with men (MSM) and implement targeted HIV control strategies. These locales may change over time, but temporal evaluations have not been performed. Methods The objectives of this study were to describe the frequency of report of MSM sex partner meeting places over time and to compare frequently reported meeting places in the past 5 years and past year among newly HIV-diagnosed MSM in Baltimore City, Maryland. Public health HIV surveillance data including partner services information were obtained for this study from the Baltimore City Health Department from May 2009 to June 2014. Results A total of 869 sex partner meeting places were reported, including 306 unique places. Bars/clubs (31%) and Internet-based sites (38%) were the most frequently reported meeting place types. Over the 5-year period, the percentage of bars/clubs decreased over time and the percentage of Internet-based sites increased over time. Among bars/clubs, 4 of 5 of those most frequently reported in the past 5 years were also most frequently reported in the most recent year. Among Internet-based sites, 3 of 5 of those most frequently reported in the past 5 years were also in the top 5 most frequently reported in the past year. Conclusion This study provides a richer understanding of sex partner meeting places reported by MSM over time and information to health departments on types of places to access a population at high risk for HIV transmission.

Patients fifty years and older attending two sexually transmitted disease clinics in Baltimore, Maryland.

INTRODUCTION AND AIMS Syringe distribution policies continue to be debated in many jurisdictions throughout the USA. The Baltimore Needle and Syringe Exchange Program (NSP) operated under a 1-for-1 syringe exchange policy from its inception in 1994 through 1999, when it implemented a restrictive policy (2000-2004) that dictated less than 1-for-1 exchange for non-program syringes. DESIGN AND METHODS Data were derived from the Baltimore NSP, which prospectively collected data on all client visits. We examined the impact of this restrictive policy on program-level output measures (i.e. distributed : returned syringe ratio, client volume) before, during and after the restrictive exchange policy. Through multiple logistic regression, we examined correlates of less than 1-for-1 exchange ratios at the client level before and during the restrictive exchange policy periods. RESULTS During the restrictive policy period, the average annual program-level ratio of total syringes distributed : returned dropped from 0.99 to 0.88, with a low point of 0.85 in 2000. There were substantial decreases in the average number of syringes distributed, syringes returned, the total number of clients and new clients enrolling during the restrictive compared to the preceding period. During the restrictive period, 33 508 more syringes were returned to the needle exchange than were distributed. In the presence of other variables, correlates of less than 1-for-1 exchange ratio were being white, female and less than 30 years old. DISCUSSION AND CONCLUSIONS With fewer clean syringes in circulation, restrictive policies could increase the risk of exposure to HIV among Injection Drug Users (IDUs) and the broader community. The study provides evidence to the potentially harmful effects of such policies.

Efforts to Reduce Overdose Deaths

Many individuals remain sexually active into their eighth decade. Surveillance data suggest that rates of sexually transmitted infections in older patients are increasing. We compared demographics, risk behaviors, and predictors of acute infections in patients 50 years and older versus younger patients attending sexually transmitted disease clinics in Baltimore, Maryland. This was a retrospective study from a large electronic database of visits to two urban sexually transmitted disease clinics between 2005 and 2010. Proportions were compared using the Chi square test. Logistic regression was used to assess predictors of acute sexually transmitted infections in older versus younger groups. It was found that patients over 50 were more likely than younger patients to report never using condoms (32.6% [CI 0.31–0.34] versus 24.1% [CI 0.23–0.25]). The overall prevalence of acute sexually transmitted infections was 18.1% (CI 0.17–0.19) in older and 25.8% (CI 0.25–0.27) in younger patients. Older women were more likely to be diagnosed with trichomoniasis (21.5% [CI 18.6–24.5] versus 13.1% [CI 11.5–14.8]). Black race was predictive of having an acute sexually transmitted infections in younger men (OR 2.2 [CI 1.47–3.35]) and women (OR 2.7 [CI 1.34–5.30]) but not in older men (OR 1.2 [CI 0.79–1.73]) or women (OR 1.2 [CI 0.43–3.15]). Older age was associated with a decreased risk of acute STI diagnosis in younger men and older women only, while having had sex for money or drugs in the past month was predictive only in younger women. Reporting symptoms and increasing numbers of sexual partners in the last six months was predictive of acute sexually transmitted infection diagnosis in all age groups. Older patients seeking care at sexually transmitted disease clinics engage in important risk behaviors. Race, a factor predictive of acute sexually transmitted infections in younger patients is not a significant predictor of sexually transmitted infections in older persons.

Investigation of Early Syphilis Trends Among Men Who Have Sex With Men to Identify Gaps in Screening and Case-finding in Baltimore City, Maryland

The recent article by Schwartz et al. addresses the intersection of two important public health issues: opiate substitution therapy and fatal heroin overdose.1 In the United States, drug overdose is responsible for more than 36 000 deaths annually2 and is the leading cause of death among illicit drug users. Baltimore, Maryland, has one of the highest per capita heroin addiction rates in the nation, with an estimated prevalence of heroin use in 10% of the population.3 Schwartz et al. conducted a 15-year ecological analysis in Baltimore and found that increases in buprenorphine and methadone treatment with concurrent decreases in overdose deaths, controlling for heroin purity. Along with previous research,4 this study demonstrates the far-reaching benefits of opiate agonist treatment. In Baltimore, an estimated 34% of 68 000 drug users were in drug treatment in 2011, with heroin being the primary drug of abuse.5 The magnitude of out-of-treatment drug users in Baltimore and in the United States underscores the need for overdose prevention efforts targeting this population. Furthermore, out-of-treatment, long-term injection drug users (IDUs) are at greatest risk for overdose.6,7 As Schwartz et al. noted, periods of abstinence resulting from recent incarceration or drug treatment are chief overdose risk factors, given associated decreases in tolerance.8,9 These facts speak to the importance of overdose prevention among active IDUs. Capital City Care, a medical marijuana dispensary, is shown in Washington, DC, on April 15, 2013, prior to the stores opening. Three years after Washington, DC, legalized medical marijuana, three stores are set to open, allowing patients with HIV/AIDS, ... As of 2012, there were an estimated 188 overdose prevention education and naloxone distribution programs (OPEND) in the United States.2 OPEND programs train peer drug users how to prevent overdoses and administer naloxone in the event of an overdose. Naloxone is a short-acting opiate antagonist that reverses the effects of respiratory depression commonly caused by opiate overdose.7 Since 2004, Baltimore’s OPEND program, Staying Alive, has reached 35 000 individuals including an estimated 10 000 IDUs, 1200 medical and drug treatment providers, and 8500 jail inmates. Staying Alive has distributed 4000 vials of naloxone, and 250 reversals have been reported. Between 2003 and 2009 (half of the study period examined in Schwartz et al.), Staying Alive distributed 1263 naloxone vials and 196 reversals were reported. We commend Schwartz et al. for their study, which highlighted important public health programs that appear to reduce overdose mortality. We believe that both OPEND and increased availability of opiate substitution therapy have contributed to decreases in overdose mortality in Baltimore. We think that both are necessary for a holistic approach to the issue of overdose.