Novel emergency department registration kiosk for HIV screening is cost-effective

Cost-effectiveness of internet-based HIV screening among gay, bisexual and other men who have sex with men (GBMSM) in Metro Vancouver, Canada

BACKGROUND

GetCheckedOnline is an internet-based screening service aiming to increase HIV testing among gay, bisexual and other men who have sex with men (GBMSM). We assessed the cost-effectiveness of GetCheckedOnline in its first implementation phase at different uptake scenarios compared to clinic-based screening services alone in Metro Vancouver, Canada.

METHODS

From a healthcare payer's perspective, our cost-utility analysis used an established dynamic GBMSM HIV compartmental model estimating the probability of acquiring HIV, progressing through diagnosis, disease stages and treatment over a 30-year time horizon. The base case scenario assumed 4.7% uptake of GetCheckedOnline in 2016 (remainder using clinic-based services), with 74% of high-risk and 44% of low-risk infrequent testers becoming regular testers in five years. Scenario analyses tested increased GetCheckedOnline uptake to 10% and 15%.

RESULTS

The cost per test for GetCheckedOnline was $29.40 compared to clinic-based services $56.92. Compared with clinic-based screening services, the projected increase in testing frequency with 4.7% uptake of GetCheckedOnline increased the costs by $329,600 (95% Credible Interval: -$498,200, $571,000) and gained 4.53 (95%CrI: 0, 9.20) quality-adjusted life years (QALYs) in a 30-year time horizon. The probability of GetCheckedOnline being cost-effective was 34% at the threshold of $50,000 per QALY, and increased to 73% at the threshold of $100,000 per QALY. The results were consistent in the other uptake scenarios. The probability of GetCheckedOnline being cost-effective became 80% at the threshold of $50,000 per QALY if assuming 5-year time horizon.

CONCLUSIONS

GetCheckedOnline is almost half the cost of clinic-based services on a per-test basis. However, increased access to testing should be balanced with risk profiles of patients to ensure the implementation can be a cost-effective strategy for increasing HIV screening among GBMSM in Metro Vancouver. Additional analyses are needed to understand the impact of internet-based screening including screening for other STIs and in other populations.

Changing HCW attitudes: a case study of normalizing HIV service delivery in emergency departments

Background

Delays in the implementation of evidence-based practices are significant and ubiquitous, compromising health outcomes. Resistance to change is a key factor in hindering adoption and integration of new evidence-based interventions. This study seeks to understand the impact of exposure to HIV testing within a research context on provider attitudes towards HIV counselling and testing (HCT) in emergency departments (ED).

Methods

This is a pre-and-post study design measuring the effect of a new ED-based HCT intervention, conducted by lay counsellors, on provider attitudes in Eastern Cape, South Africa. A validated, anonymized, 7-item survey was self-completed by routine care providers (physicians, nurses, and case managers). Questions were scored on a 5-point Likert scale with 5 consistently reflecting a positive attitude. Mean scores were calculated for each question and compared using a two-sample t-test to assess change in sample means for attitudes among providers surveyed before and after the intervention.

Results

A total of 132 surveys were completed across three EDs. Majority of respondents were female (70.5%), 20–29 years old (37.9%), of African race (81.1%), nurses (39.4%), and practicing medicine for 0–4 years (37.9%). Pre-intervention, providers displayed a positive attitude towards ‘the benefit of offering ED-based HCT to patients’ (4.33), ‘the ED offering HCT’ (3.53), ‘all ED patients receiving HCT’ (3.42), ‘concern about patient reaction to HCT’ (3.26), and ‘comfort with disclosing HCT results’ (3.21); and a mildly negative attitude towards ‘only high-risk ED patients receiving HCT’ (2.68), and ‘the burden of offering HCT in a clinical environment’ (2.80). Post-intervention, provider attitudes improved significantly towards ‘all ED patients receiving HCT’ (3.86, p < 0.05), ‘only high-risk ED patients receiving HCT’ (2.30, p < 0.05), ‘the burden of offering HCT in a clinical environment’ (3.21, p < 0.05), and ‘comfort with disclosing HCT results’ (3.81, p < 0.05).

Conclusions

Controlled exposure to new practices with a structured implementation period can shift attitudes beginning a process of practice normalization. In our study, we observed improvements in provider attitudes regarding the benefits of HCT and the burden of offering HCT to all patients in the ED. Research activities may have a role in mitigating resistance to change and supporting intervention adoption.

Development of a 2-step algorithm to identify emergency department patients for HIV pre-exposure prophylaxis

BACKGROUND

Expanded access to HIV PrEP is a central pillar of the "Ending the HIV Epidemic" initiative. Identification of PrEP eligible individuals in EDs remains understudied. Our goal was to estimate the accuracy of the Denver HIV Risk Score (DHRS), a quantitative HIV risk tool, for determining PrEP eligibility, and to incorporate it into a novel screening algorithm to optimize sensitivity and specificity.

METHODS

We performed a prospective cross-sectional study in two urban EDs. Patients were eligible if ≥18 years of age and without HIV. Research staff collected individual HIV risk, components of the DHRS, and PrEP eligibility per 2017 CDC guidelines. Accuracy estimates were calculated for the DHRS alone and the DHRS plus additional PrEP-specific questions.

RESULTS

1002 patients were enrolled with a median age of 39 years; 54.8% were male, 29.5% Black/non-Hispanic, and 22.5% Hispanic. Overall, 119 (11.9%, 95% CI: 9.9%-14.0%) were PrEP eligible; 5% endorsed history of sex with a partner at higher risk for HIV or condomless sex with multiple partners, 4% an STI, and 2% sharing IDU equipment. A DHRS ≥25 had a sensitivity of 92.4% (95% CI: 86.1%-96.5%) and a specificity of 17.2% (95% CI: 14.8%-19.9%) for PrEP eligibility. A 2-step algorithm, "DHRS-PrEP", beginning with a DHRS ≥25, followed by a step with questions specific to IDU, STI, and sexual partners improved the specificity to 100% (95% CI: 99.6%-100%).

CONCLUSIONS

Among a heterogeneous ED sample, a substantial proportion was identified as PrEP eligible, and a 2-step algorithm had high sensitivity and specificity for identifying PrEP-eligible patients.

Comparison of HIV Screening Strategies in the Emergency Department: A Randomized Clinical Trial

IMPORTANCE

The National HIV Strategic Plan for the US recommends HIV screening in emergency departments (EDs). The most effective approach to ED-based HIV screening remains unknown.

OBJECTIVE

To compare strategies for HIV screening when integrated into usual ED practice.

DESIGN, SETTING, AND PARTICIPANTS

This randomized clinical trial included patients visiting EDs at 4 US urban hospitals between April 2014 and January 2016. Patients included were ages 16 years or older, not critically ill or mentally altered, not known to have an HIV positive status, and with an anticipated length of stay 30 minutes or longer. Data were analyzed through March 2021.

INTERVENTIONS

Consecutive patients underwent concealed randomization to either nontargeted screening, enhanced targeted screening using a quantitative HIV risk prediction tool, or traditional targeted screening as adapted from the Centers for Disease Control and Prevention. Screening was integrated into clinical practice using opt-out consent and fourth-generation antigen-antibody assays.

MAIN OUTCOMES AND MEASURES

New HIV diagnoses using intention-to-treat analysis, absolute differences, and risk ratios (RRs).

RESULTS

A total of 76 561 patient visits were randomized; median (interquartile range) age was 40 (28-54) years, 34 807 patients (51.2%) were women, and 26 776 (39.4%) were Black, 22 131 (32.6%) non-Hispanic White, and 14 542 (21.4%) Hispanic. A total of 25 469 were randomized to nontargeted screening; 25 453, enhanced targeted screening; and 25 639, traditional targeted screening. Of the nontargeted group, 6744 participants (26.5%) completed testing and 10 (0.15%) were newly diagnosed; of the enhanced targeted group, 13 883 participants (54.5%) met risk criteria, 4488 (32.3%) completed testing, and 7 (0.16%) were newly diagnosed; and of the traditional targeted group, 7099 participants (27.7%) met risk criteria, 3173 (44.7%) completed testing, and 7 (0.22%) were newly diagnosed. When compared with nontargeted screening, targeted strategies were not associated with a higher rate of new diagnoses (enhanced targeted and traditional targeted combined: difference, -0.01%; 95% CI, -0.04% to 0.02%; RR, 0.7; 95% CI, 0.30 to 1.56; P = .38; and enhanced targeted only: difference, -0.01%; 95% CI, -0.04% to 0.02%; RR, 0.70; 95% CI, 0.27 to 1.84; P = .47).

CONCLUSIONS AND RELEVANCE

Targeted HIV screening was not superior to nontargeted HIV screening in the ED. Nontargeted screening resulted in significantly more tests performed, although all strategies identified relatively low numbers of new HIV diagnoses.

TRIAL REGISTRATION

ClinicalTrials.gov Identifier: NCT01781949.

COVID-19 and beyond: Lessons learned from emergency department HIV screening for population-based screening in healthcare settings

Emergency departments (EDs) have played a major role in the science and practice of HIV population screening. After decades of experience, EDs have demonstrated the capacity to provide testing and linkage to care to large volumes of patients, particularly those who do not otherwise engage the healthcare system. Efforts to expand ED HIV screening in the United States have been accelerated by a collaborative national network of emergency physicians and other stakeholders called EMTIDE (Emergency Medicine Transmissible Infectious Diseases and Epidemics). As the COVID-19 pandemic evolves, EDs nationwide are being tasked with diagnosing and managing COVID-19 in a myriad of capacities, adopting varied approaches based in part on know-how, local disease trends, and the supply chain. The objective of this article is to broadly summarize the lessons learned from decades of ED HIV screening and provide guidance for many analogous issues and challenges in population screening for COVID-19. Over time, and with the accumulated experience from other epidemics, ED screening should develop into an overarching discipline in which the disease in question may vary, but the efficiency of response is increased by prior knowledge and understanding.

The Role of Health Kiosks: A Scoping Review (Preprint)

Background

Health kiosks are publicly accessible computing devices that provide access to services, including health information provision, clinical measurement collection, patient self–check-in, telemonitoring, and teleconsultation. Although the increase in internet access and ownership of smart personal devices could make kiosks redundant, recent reports have predicted that the market will continue to grow.

Objective

We seek to clarify the current and future roles of health kiosks by investigating the settings, roles, and clinical domains in which kiosks are used; whether usability evaluations of health kiosks are being reported, and if so, what methods are being used; and what the barriers and facilitators are for the deployment of kiosks.

Methods

We conducted a scoping review using a bibliographic search of Google Scholar, PubMed, and Web of Science databases for studies and other publications between January 2009 and June 2020. Eligible papers described the implementation as primary studies, systematic reviews, or news and feature articles. Additional reports were obtained by manual searching and querying the key informants. For each article, we abstracted settings, purposes, health domains, whether the kiosk was opportunistic or integrated with a clinical pathway, and whether the kiosk included usability testing. We then summarized the data in frequency tables.

Results

A total of 141 articles were included, of which 134 (95%) were primary studies, and 7 (5%) were reviews. Approximately 47% (63/134) of the primary studies described kiosks in secondary care settings. Other settings included community (32/134, 23.9%), primary care (24/134, 17.9%), and pharmacies (8/134, 6%). The most common roles of the health kiosks were providing health information (47/134, 35.1%), taking clinical measurements (28/134, 20.9%), screening (17/134, 12.7%), telehealth (11/134, 8.2%), and patient registration (8/134, 6.0%). The 5 most frequent health domains were multiple conditions (33/134, 24.6%), HIV (10/134, 7.5%), hypertension (10/134, 7.5%), pediatric injuries (7/134, 5.2%), health and well-being (6/134, 4.5%), and drug monitoring (6/134, 4.5%). Kiosks were integrated into the clinical pathway in 70.1% (94/134) of studies, opportunistic kiosks accounted for 23.9% (32/134) of studies, and in 6% (8/134) of studies, kiosks were used in both. Usability evaluations of kiosks were reported in 20.1% (27/134) of papers. Barriers (e.g., use of expensive proprietary software) and enablers (e.g., handling of on-demand consultations) of deploying health kiosks were identified.

Conclusions

Health kiosks still play a vital role in the health care system, including collecting clinical measurements and providing access to web-based health services and information to those with little or no digital literacy skills and others without personal internet access. We identified research gaps, such as training needs for teleconsultations and scant reporting on usability evaluation methods.

Cost-effectiveness of HIV screening in emergency departments: a systematic review

In 2016 worldwide, 1.8 million people were newly infected with HIV. About 36.7 million had HIV but 14 million were unaware, did not seek treatment and were likely to infect others. Undiagnosed HIV infection is a major contributor to transmission. Therefore, screening is critical to prevention. Although CDC recommends routine screening in the emergency department (ED), implementation is not universal or sustained. Cost-effectiveness of ED-based screening could enhance implementation. We address the question: Is HIV screening in the ED cost-effective? Using the Joanna Briggs Institute guidelines, we conducted a systematic review of economic evaluations of ED-based HIV screening. We found 311 studies with 12 duplicates. We excluded 276 studies that did not conduct economic evaluations and another three for lack of quantitative data, leaving 20 articles for the full review. We reviewed cost-effectiveness ratios (CER), incremental cost-effectiveness ratios (ICER), and average costs per diagnosis, quality-adjusted life years, averted transmissions and per patient linked to care. CER and ICER were below CDC thresholds indicating that HIV screening in the ED is cost-effective. Therefore, ED-based HIV screening should be widely implemented, supported and sustained as a cost-effective tool for combating HIV/AIDS.

Utilization of integrated health kiosks: A systematic review

Background: In some countries, integrated health kiosks are used to provide some services and information. However; it is still not officially included in many countries' health systems. The purpose of this study was to gather and summarize different aspects of using health kiosks in countries. Methods: Five English databases, including Web of Science, Cochrane Library, PubMed / Medline, Embase and Scopus, were explored from 2001 to 2018, using words related to three concepts: health, design and development, and kiosk. Different dimensions of health kiosks utilization in the world were identified and analyzed thematically. Results: Out of 918 search results, 37 articles were included in the study and analyzed. Most of them were conducted in the United States and addressed the development, implementation, design, or feasibility of utilizing integrated health kiosks. The different aspects of kiosk utilization were categorized into 6 dimensions: services provided, deployment location, user characteristics and variables of accepting kiosks, notable design and construction points, their benefits and effectiveness, and finally, the challenges of using kiosks. Conclusion: This study found that health kiosks are promising, cost-effective and multifunctional tools; if included in the formal health system of countries, they may improve health indicators in countries. However, before deploying, their challenges and concerns need to be investigated and addressed.

Self-Check-In Kiosks Utilization and Their Association With Wait Times in Emergency Departments in the United States

BACKGROUND

Delayed care in emergency departments (EDs) is a serious problem in the United States. Patient wait time is considered a critical measure of delayed care in EDs. Several strategies have been employed by EDs to reduce wait time, including implementation of self-check-in kiosks. However, the effect of kiosks on wait time in EDs is understudied.

OBJECTIVES

To assess the association between patient wait time and utilization of self-check-in kiosks in EDs. To investigate a series of other patient-, ED-, and hospital-level predictors of wait time in EDs.

METHODS

Using data from the 2015 and 2016 National Hospital Ambulatory Medical Care Survey, we analyzed 40,528 ED visits by constructing a multivariable linear regression model of the log-transformed wait time data as an outcome, then computing percent changes in wait times.

RESULTS

During the study period, about 9% of EDs in the United States implemented kiosks. In our linear regression model, the wait time in EDs with kiosk self-check-in services was 56.8% shorter (95% confidence interval ̶ 130% to ̶ 6.4%, p < 0.05) compared with EDs without kiosk services. In addition to kiosks, patients' day of visit, arrival time, triage assessment, arrival by ambulance, chronic medical conditions, ED boarding, hospitals' full-capacity protocol, and hospitals' location were significant predictors of wait time.

CONCLUSIONS

Self-check-in kiosks are associated with shorter ED wait time in the United States. However, prolonged ED wait time continues to be a system-wide problem, and warrants multilayered interventions to address this challenge for those who are in acute need of immediate care.