The Spatial Association Between Federally Qualified Health Centers and County-Level Reported Sexually Transmitted Infections: A Spatial Regression Approach

Examining County-Level Associations between Federally Qualified Health Centers and Sexually Transmitted Infections: A Political Ecology of Health Framework

Federally Qualified Health Centers (FQHCs) are the largest providers of healthcare for sexually transmitted infections (STIs) in medically underserved communities in the United States (US). Through the Affordable Care Act (ACA), FQHCs have grown in number, but the impact of this growth on STIs is poorly understood. This ecological study seeks to quantify the association between FQHCs and STI prevalence in all US counties. Variables were described utilizing medians and interquartile ranges, and distributions were compared using Kruskal-Wallis tests. Median rates of chlamydia in counties with high, low, and no FQHCs were 370.3, 422.6, and 242.1 cases per 100,000 population, respectively. Gonorrhea rates were 101.9, 119.7, and 49.9 cases per 100,000 population, respectively. Multivariable linear regression models, adjusted for structural and place-based characteristics (i.e., Medicaid expansion, social vulnerability, metropolitan status, and region), were used to examine county-level associations between FQHCs and STIs. Compared to counties with no FQHCs, counties with a high number of FQHCs had chlamydia rates that were an average of 68.6 per 100,000 population higher (β = 68.6, 95% CI: 45.0, 92.3) and gonorrhea rates that were an average of 25.2 per 100,000 population higher (β = 25.2, 95% CI: 13.2, 37.2). When controlled for salient factors associated with STI risks, greater FQHC availability was associated with greater diagnosis and treatment of STIs. These findings provide empirical support for the utility of a political ecology of health framework and the critical role of FQHCs in confronting the STI epidemic in the US.

Comprehensive Sexually Transmitted Infection Screening and Testing Interventions in a Predominantly Heterosexual Population with HIV at a Health Center

In the United States, sexually transmitted infections (STIs) have remained elevated for the fifth consecutive year from 2015 to 2019. There is a need to implement standardization of the US Centers for Disease Control and Prevention STI screening and testing recommendations. Higher STI incidence populations such as people with HIV, men who have sex with men, and adolescents and young adults, are frequently not screened and tested for bacterial STIs as recommended. Federally qualified health centers (FQHCs) have the potential to deliver STI services for at-risk individuals as a routine component of primary care. Comprehensive sexual histories using audio computer-assisted self-interview software on electronic devices were done at each clinic visit at a FQHC. Extragenital site testing for chlamydia and gonorrhea, and blood drawn for syphilis testing was completed onsite based on the sexual history responses. Out of 432 eligible clients, 230 clients consented to having their data used for evaluation in this study. Sexual orientation was reported as heterosexual or straight by 86.5% (n = 199), 10.9% (n = 25) as gay/lesbian/same-sex loving, and 2.6% (n = 6) as bisexual or pansexual. Specimen collection took place over a 16-month period and included 80% (n = 855) urine, 13% (n = 140) pharyngeal, and 6.4% (n = 68) rectal samples. Positivity rates included 10% (n = 7) rectal, 6% (n = 8) pharyngeal, and 2% (n = 20) urine samples. Findings identified higher positivity rates among pharyngeal and rectal specimens compared to urogenital specimens. The feasibility of implementing a comprehensive STI screening and testing process in a FQHC is attainable and beneficial.

County-Level Social Capital and Bacterial Sexually Transmitted Infections in the United States

BACKGROUND

The association between county-level social capital indices (SCIs) and the 3 most commonly reported sexually transmitted infections (STIs) in the United States is lacking. In this study, we determined and examined the association between 2 recently developed county-level SCIs (ie, Penn State Social Capital Index [PSSCI] vs United States Congress Social Capital Index [USCSCI]) and the 3 most commonly reported bacterial STIs (chlamydia, gonorrhea, and syphilis) using spatial and nonspatial regression techniques.

METHODS

We assembled and analyzed multiyear (2012-2016) cross-sectional data on STIs and 2 SCIs (PSSCI vs USCSCI) on counties in all 48 contiguous states. We explored 2 nonspatial regression models (univariate and multiple generalized linear models) and 3 spatial regression models (spatial lag model, spatial error model, and the spatial autoregressive moving average model) for comparison.

RESULTS

Without exception, all the SCIs were negatively associated with all 3 STI morbidities. A 1-unit increase in the SCIs was associated with at least 9% (P < 0.001) decrease in each STI. Our test of the magnitude of the estimated associations indicated that the USCSCI was at least 2 times higher than the estimates for the PSSCI for all STIs (highest P value = 0.01).

CONCLUSIONS

Overall, our results highlight the potential benefits of applying/incorporating social capital concepts to STI control and prevention efforts. In addition, our results suggest that for the purpose of planning, designing, and implementing effective STI control and prevention interventions/programs, understanding the communities' associational life (as indicated by the factors/data used to develop the USCSCI) may be important.

Existence, Distribution, and Characteristics of STD Clinics in the United States, 2017

OBJECTIVES

Studies of sexually transmitted disease (STD) clinics have been limited by the lack of a national list for representative sampling. We sought to establish the number, type, and distribution of STD clinics and describe selected community characteristics associated with them.

METHODS

We conducted a 2-phased, multilevel, online search from September 2014 through March 2015 and from May through October 2017 to identify STD clinics in all 50 US states and the District of Columbia. We obtained data on clinic name, address, contact information, and 340B funding status (which requires manufacturers to provide outpatient drugs at reduced prices). We classified clinics by type. We also obtained secondary county-level data to compare rates of chlamydia and HIV, teen births, uninsurance and unemployment, and high school graduation; ratios of primary care physician to population; health care costs; median household income; and percentage of population living in rural areas vs nonrural areas. We used t tests to examine mean differences in characteristics between counties with and without STD clinics.

RESULTS

We found 4079 STD clinics and classified them into 10 types; 2530 (62.0%) clinics were affiliated with a local health department. Of 3129 counties, 1098 (35.1%) did not have an STD clinic. Twelve states had an STD clinic in every county, and 34 states had ≥1 clinic per 100 000 population. Most STD clinics were located in areas of high chlamydia morbidity and where other surrogate needs were greatest; rural areas were underserved by STD clinics.

CONCLUSIONS

This list may aid in more comprehensive national studies of clinic services, STD clinic adaptation to external policy changes (eg, in public financing or patient access policy), and long-term clinic survival, with special attention to clinic coverage in rural areas.