Plasma EBV DNA in Nasopharyngeal Cancer (NPC) Treated with Definitive Radiotherapy (RT)

PURPOSE/OBJECTIVE(S)

EBV DNA has well-studied roles in NPC including early detection and surveillance. There are limited North American data on EBV DNA testing. Our center has used EBV DNA testing since 2010. We hypothesized: (1) higher first post-RT EBV DNA level is associated with worse prognosis, and (2) surveillance EBV DNA is specific for recurrence at a low detection threshold.

MATERIALS/METHODS

We retrospectively reviewed all patients with non-metastatic (TNM-7 stage I-IVB) NPC treated with definitive RT/chemoRT (CRT) ± adjuvant chemotherapy (AC) between 2010-2017. EBV DNA was assayed by quantitative PCR in a CAP/CLIA-certified laboratory and reported in copies/mL of plasma. Pre-RT is defined as 0-90 days before the first RT fraction and post-RT within one year after RT. We report log odds ratios (LOR) from a linear model of T- and N-category with log-adjusted EBV DNA as the response variable. Survival outcomes were analyzed with log-rank tests and Cox multivariate analyses (MVA) adjusted for age, stage, and treatment, reporting hazard ratios (HR). A total of 95% confidence intervals of LOR and HR are reported. The detection threshold that maximized the F1 accuracy score was considered optimal.

RESULTS

Of 271 patients in the study window, 179 had pre-RT +/- post-RT EBV DNA testing. Six received RT, 43 CRT, and 130 CRT+AC. With 7-yr median follow-up, 37 recurred and 37 died. Detectable pre-RT EBV DNA was found in 154 (86%) with a median of 928 copies/mL (range: 1-239214). EBV DNA level correlated with higher N category (LOR: 0.28, 0.15-0.42, p<0.001), but not T category (0.04, -0.06-0.13, p = 0.5). Above-median pre-RT EBV DNA was associated with worse recurrence-free survival (RFS) by log-rank test (p = 0.016) and Cox MVA (HR: 2.2, 1.1-4.8, p = 0.03) along with N category, age, and no AC. Post-RT EBV DNA was available in 99 patients at a median of 54 days. RFS, progression-free survival (PFS), and overall survival (OS) were worse in patients with detectable post-RT EBV DNA (Table). RFS and PFS drop further to 20% if EBV DNA was detectable after the full treatment (RT±AC, n = 71). In Cox MVA, post-RT EBV DNA remained independently prognostic (Table). EBV DNA was performed within 30 days of recurrence in 30 patients, and 24 were detectable (80% sensitivity). Conversely, of 152 patients without recurrence and at least 3-yr follow-up, 95 had post-RT EBV DNA testing and 84 were undetectable (88% specificity). An EBV DNA threshold of 31 copies maximized F1 accuracy metric, yielding 74% sensitivity and 97% specificity.

CONCLUSION

Pre-RT EBV DNA is prognostic and associated with higher N-category. Post-RT EBV DNA is a strong, independent predictor of RFS, PFS, and OS; 31 copies/mL may be a useful threshold to detect recurrence.

Dawn of Staging for Head and Neck Soft Tissue Sarcoma: Validation of the Novel 8th Edition AJCC T Classification and Proposed Stage Groupings

PURPOSE/OBJECTIVE(S)

After decades of stagnation, the 8th edition TNM (TNM8) introduced a new T classification for head and neck (HN) soft tissue sarcomas (STS). New size cutoffs of 2 and 4 cm define T1-3, and a novel T4 category is defined by local invasion of adjoining structures. These size cutoffs had been chosen arbitrarily to advance data collection in this unique disease site since literature showed approximately 70% of HN STS did not reach the previous size threshold (5 cm) for the existing T1 category. The definition of the TNM8 T categories also align with mucosal HN cancers. No stage grouping for HN STS was defined since this new classification required more data collection to derive stage groups. This study aims to validate the TNM8 T classification and to propose stage groupings.

MATERIALS/METHODS

Clinical data of all adult (>16 years) HN STS patients treated from 1988 - 2019 with curative intent in our tertiary cancer center were retrieved from a prospective database, and supplemented with chart review. As per TNM8, cutaneous angiosarcoma, embryonal and alveolar rhabdomyosarcoma, Kaposi sarcoma, and dermatofibrosarcoma protuberans were excluded due to their different behavior. Multivariate analysis (MVA) identified prognostic factors for overall survival (OS). Adjusted hazard ratios (AHR) and recursive partitioning analysis (RPA) were used to derive stage groupings. Stage grouping performance for OS was assessed and also compared against the existing TNM8 groups for non-HN STS.

RESULTS

A total of 221 patients (N1: 2; M1: 2) were included. Of the 219 M0 patients, 63% were males; median tumor size was 3.0 cm (range: 0.3-14.0); the proportion of TNM8 T1-T4 were 35%, 34%, 26%, and 5%, respectively. Median follow up was 5.9 years. Five-year OS was 79%. MVA confirmed the prognostic value of T category (T4 HR 7.73, 95% CI 3.62-16.5) and grade (G2/3 vs G1 HR 3.7, 95% CI 1.82-7.53), in addition to age (HR 1.03, 95% CI 1.01-1.04) (all p<0.001) for OS. AHR model derived T1-3_Grade 1 as stage 1; T1-3_Grade 2/3 as stage II; and T4_any Grade or any T_N1 as stage III (Table 1); the corresponding 5-year OS was 93%, 73%, and 38%, respectively. Both patients with M1 died within 1.5 years after diagnosis and M1 disease was designated stage IV. The AHR-grouping outperformed the RPA and non-HN TNM8 stage grouping for hazard consistency, hazard discrimination, percent variance explained, hazard difference, and sample size balance.

CONCLUSION

The novel T4 category introduced in TNM8 is associated with a >7 fold increased risk of death. Grade continues to be a critical prognostic factor in HN STS. The TNM8 HN STS T classifications have been validated, and the proposed new stage groupings with TNM8 incorporating grade have excellent performance for OS.

Outcomes after Contemporary Definitive Radiotherapy Alone in Patients with TNM-7 Stage III/IV Head and Neck Squamous Cell Carcinoma

PURPOSE/OBJECTIVE(S)

This study was undertaken to determine outcomes and prognostic factors of definitive intensity-modulated radiotherapy (IMRT) alone for patients with TNM-7 stage III/IV HNSCC who did not receive concurrent chemotherapy.

MATERIALS/METHODS

We evaluated TNM-7 stage III/IV HNSCC patients treated with definitive IMRT alone in our institution from 2004-2019. Patients were reclassified according to TNM-8 staging. Stage II HPV+ oropharyngeal cancers (OPC) were subdivided into T1-2N2 and T3N0-2 for analysis. The rationale for chemotherapy omission was obtained retrospectively from clinical documentation. Recurrence-free survival (RFS) and overall survival (OS) were estimated stratified by HPV status (determined by p16 staining, sometimes supplemented by HPV DNA testing). Multivariable analysis (MVA) identified prognostic factors for RFS and OS, taking into account stage and IMRT regimen. Age, performance status, and smoking were also examined for OS.

RESULTS

A total of 1083 patients were included (460 HPV+ and 623 HPV-). Reasons for omission of chemotherapy were: age >70 years or frailty (n = 551, 51%), cisplatin contraindication (n = 241, 22%), patient refusal (n = 106, 10%), and clinician's decision (n = 185, 17%). Median age was 67 years for HPV+ and 70 years for HPV- cohorts. IMRT mostly utilized altered fractionation regimens (n = 1016, 94%): moderately accelerated (Acc) (70 Gy/35 fractions [f]/6 weeks [w], 55%), hypofractionated (Hypo) (60 Gy/25f/5w, 14%), and hyperfractionated-accelerated (Hyper) (64 Gy/40f/4w, 25%). Median follow-up was 5 years. Five-year RFS and OS for HPV+ TNM-8 stage I/T1-2N2/T3N0-N2/III were 89%/86%/76%/52% and 83%/80%/64%/33% respectively (p<0.01). The same outcomes for HPV- TNM-8 stage III/IVA/IVB were 58%/52%/39% and 47%/27%/13%, respectively (p<0.01). MVA confirmed that HPV+ T3N0-2 subset within stage II and stage III (vs stage I) had lower RFS, and HPV- stage IVA and IVB (vs stage III) carried worse RFS and OS (Table).

CONCLUSION

Despite the retrospective nature and inherent selection bias, this large single institutional study shows that altered fractionated IMRT alone is an acceptable alternative for elderly, frail or cisplatin ineligible patients with HPV+ stage I/IIA (T1-2N2) OPC. Patients with HPV+ T3N0-2/stage III OPC and HPV- stage III/IV HNSCC have poor outcomes with IMRT alone and may benefit from alternative strategies.

A Multicenter Study of Clinical to Planning Target Volume Margins for Adjuvant Partial Breast Irradiation Delivered on the 1.5T MR-Linear Accelerator

PURPOSE/OBJECTIVE(S)

Adjuvant partial breast irradiation (APBI) for early-stage breast cancer patients delivered on a conventional Linac commonly uses a clinical to planning target volume (CTV-PTV) margin of 10 mm. Published data suggest this margin could be reduced using an MR-guided workflow. This study quantifies the CTV to PTV margin for APBI delivered on the 1.5T MR-Linac (MRL) using an Adapt to Position (ATP) workflow.

MATERIALS/METHODS

All target contouring was done as per the IMPORT LOW trial and MRL Consortium guidelines. The CTV is the tumor bed defined by surgical clips including postsurgical changes. A single center cohort of ten patients was used to assess delineation error on ProKnow DS v1.28.0 by measuring CTV contour displacements on the CT planning scans (pCT) delineated by five breast radiation oncologists. All other error components were measured on treatment planning software on another single center cohort of ten patients. Target deformation error was measured as surgical clip displacements between the pCT and daily pre-treatment (pre-Tx) MRI scans. Intrafraction motion was determined by the CTV displacement between pre- and post-treatment MRIs (post-Tx) in available paired images from five patients. Matching error was estimated as the interobserver variation of three MRL radiographers registering the pCT with daily pre-Tx MRI. Technical delivery accuracy was estimated using the results from routine quality assurance measurements. Beam penumbral width (p) was estimated from the clinical treatment plans. The systematic (Σ) and random errors (σ) for each component were calculated in the left/right (X), superior/inferior (Y) and anterior/posterior (Z) directions. The contribution of these errors to the PTV margin, M was calculated using van Herk's formula with α and β being 2.50 and 1.64 respectively.

RESULTS

For APBI using an MRL ATP workflow, a CTV-PTV margin of 5.7 to 7.6 mm is required to achieve a 90% confidence of CTV coverage by the 95% isodose. Individual error components are in. Table 1 delineation error remains the largest component of error.

CONCLUSION

A minimum CTV-PTV margin of 6-8 mm is required for APBI using an MRL ATP workflow. Although smaller than margins used in conventional Linacs, the clinical benefits (in terms of fibrosis risk) of treating APBI patients on an MRL are likely to be modest. Further margin reductions may be possible using an "Adapt to Shape" workflow with daily online recontouring.

The Prognostic and Predictive Value of Pre-Treatment Total Lymphocyte Count in HPV+ Oropharyngeal Carcinoma Receiving Definitive (Chemo-) Radiation

PURPOSE/OBJECTIVE(S)

Evidence of prognostic importance of pre-radiotherapy (RT) total lymphocyte counts (TLC) and interaction with addition of cisplatin (CRT) in HPV-positive oropharyngeal carcinoma (HPV+OPC) is conflicting. Recent data suggest patients with high TLC may not benefit from the addition of chemotherapy (Price et al, JCO 2022). We assess the prognostic and predictive value of TLC in a large single center HPV+OCP cohort.

MATERIALS/METHODS

All HPV+OPC patients treated at a single academic center with definitive RT/CRT between 2005-2018 were included. Pre-treatment TLC up to 6 weeks prior to RT start were considered. Multivariable analysis (MVA) was applied to assess the prognostic importance of TLC (continuous variable), adjusted for age, gender, performance status, TNM-8 stage, and smoking status in the CRT and RT subgroups. The actuarial rates of locoregional control (LRC), distant control (DC), and overall survival (OS) were calculated using Kaplan-Meier and competing risk methods, stratified by low vs high TLC (determined using Contal and O'Quigley method for optimal cutoff).

RESULTS

Among 1153 eligible patients, 707 (61%) were treated with CRT. Median age was 59.7 (range 22.7-92.2) years. 526 patients were (46%) TNM-8 stage I, 366 (32%) stage II and 261 (23%) stage III. Median TLC was 1.6 x 109/L (range 0.1-8.5). Median follow-up was 5.5 years. On MVA, TLC was prognostic for patients receiving CRT (OS [adjusted hazard ration (aHR) 0.55 (0.38-0.79), p = 0.002], DC [aHR 0.57 (0.37-0.88), p = 0.011], LRC [aHR 0.57 (0.36-0.89), p = 0.014]) but not RT (OS [aHR 1.04 (0.82-1.31), p = 0.74], LRC [aHR 1.26 (0.86-1.85), p = 0.23], DC [aHR 0.87 (0.64-1.19), p = 0.4)]. The optimal TLC cut-off for OS with CRT was 1.9 x 109/L. Low vs high TLC patients receiving CRT had significantly inferior 5-year DC (87% vs 93%, p = 0.017) and OS (84% vs 90%, p = 0.026). The benefit of higher TLC was most evident in stage II disease (table 1). CRT vs RT improved OS for stage II/III disease at high and low TLC.

CONCLUSION

Pre-treatment TLC is prognostic in a large cohort of HPV+OPC patients receiving CRT but not RT alone. Further investigation of the interaction of cisplatin and immune response during RT is warranted. The omission of chemotherapy based on TLC is not supported.

Outcomes of Head and Neck Cutaneous Angiosarcoma Treated in the IMRT Era

PURPOSE/OBJECTIVE(S)

Clinical behavior, natural history, and varied presentations of cutaneous angiosarcomas of the head and neck region (HN), in conjunction with its rarity, have rendered standardization of treatment elusive. We aimed to assess outcomes and patterns of failure for patients treated with surgery and radiation (Sx+RT), and radiation alone (RT).

MATERIALS/METHODS

A retrospective review of all HN angiosarcoma patients amenable for upfront Sx or RT in our institution between 2004-2018 was completed. Generally, treatment included Sx when feasible, and RT for large or extensive/ill-defined tumors. Demographic, tumor characteristics, local (LC), regional (RC), distant control (DC), and overall survival (OS), as well as patterns (in-field, marginal, out-of-field) of local failure at 5-year were estimated. Univariate analysis (UVA) was conducted to assess association with outcomes.

RESULTS

A total of 33 patients were eligible (14 Sx+RT and 19 RT). Tumor locations were: scalp (16, 48%). face (n = 12, 36%), and overlapping (5, 15%). Lesion types were: nodular (n = 23, 70%), flat (n = 4, 12%) and mixed (n = 6, 18%). Tumor size was larger in the RT group (median: 10.00 vs 2.85 cm, p<0.01). RT and Sx+RT patients had otherwise similar baseline characteristics: median age 74.3; male 70%; and ECOG performance status ≤1 85%. RT dose fractionations ranged from 50-70 Gy in 25-35 fractions in the RT group and 50-66 Gy in 25-33 fractions in the Sx+RT group. Four (12%) patients received neoadjuvant chemotherapy. Median follow up was 5.5 years. Five-year LC, RC, DC, and OS for RT vs Sx+RT groups were 68% vs 85% (p = 0.28); 95% vs 86% (p = 0.89); 79% vs 86% (p = 0.39); and 45% vs 55% (p = 0.71), respectively. The in-field/marginal/out-of-field local failure rate at 5 years were 16% vs 7% (p = 0.46), 26% vs 15% (p = 0.41), and 13% vs 0% (p = 0.24) for the RT vs Sx+RT groups, respectively. UVA showed that scalp location and ulceration/bleeding were strong adverse features for OS. Bone invasion was significantly associated with lower DC (Table). Lesion type (nodular/flat/mixed), tumor size, and treatment type (Sx+RT vs RT), were not significantly associated with LC or pattern of local failure.

CONCLUSION

Scalp tumors, as compared to face, portended poorer prognosis, and ulceration/bleeding and bone invasion were associated with increased distant metastases. Sx+RT was the preferred treatment modality when possible and typically used for smaller and better defined tumors. RT was reserved for larger and extensive/ill-defined disease; despite this, in the IMRT era, RT achieves reasonable rates of control, markedly superior to historical series.

Adaptive radiotherapy for breast cancer

Research in the field of local and locoregional breast cancer radiotherapy aims to maintain excellent oncological outcomes while reducing treatment-related toxicity. Adaptive radiotherapy (ART) considers variations in target and organs at risk (OARs) anatomy occurring during the treatment course and integrates these in re-optimized treatment plans. Exploiting ART routinely in clinic may result in smaller target volumes and better OAR sparing, which may lead to reduction of acute as well as late toxicities. In this review MR-guided and CT-guided ART for breast cancer patients according to different clinical scenarios (neoadjuvant and adjuvant partial breast irradiation, whole breast, chest wall and regional nodal irradiation) are reviewed and their advantages as well as challenging aspects discussed.

Implementing HIV Prevention in Sub-Saharan Africa: A Systematic Review of Interventions Targeting Systems, Communities, and Individuals

HIV remains a threat to global public health, disproportionately affecting countries across Sub-Saharan Africa. Although treatment and access to care have improved, prevention remains critical to ending new HIV infections by 2030. A variety of prevention strategies exist, yet their effectiveness is difficult to measure and variable due to the nature of the interventions and vulnerability of the intervention during implementation. This systematic review of 51 studies synthesizes data on the implementation and evaluation of evidence-based HIV prevention interventions across Sub-Saharan Africa. Studies were included if they occurred between January 1, 2008, and December 31, 2019, inclusive in Sub-Saharan Africa, were written in English, implemented an HIV prevention intervention in the field, and had reportable results. Using a modified social-ecological model for HIV prevention, we divided studies into three categories: interventions targeting health systems (n = 16), communities (n = 8), and individuals (n = 27). Across all categories, the data emphasized preventing mother-to-child transmission (PMTCT), medical interventions, and psychosocial interventions. The most successful programs bundled several interventions that were integrated into the health system. There is a notable lack of interventions targeting key populations and there are significant rates of loss to follow up (LTFU) across many studies. This review provides insight into the prioritization of evidence-based HIV prevention interventions across Sub-Saharan Africa.

Systematic review of interventions aimed at improving HIV adherence to care in low- and middle-income countries in Sub-Saharan Africa

Long-term adherence to antiretroviral medication continues to present as a challenge along the continuum of the HIV care cascade. HIV interventions and support programs are significantly threatened in resource-limited settings by challenges in maintaining long-term follow-up for ART adherence. We sought to complete a systematic review to comprehensively examine ART adherence and retention in care interventions in Sub-Saharan Africa and to report on the implementation of interventions in real-world settings to inform future health investments in HIV care. Interventions were grouped according to their impact on individual, community, and health-systems levels. While a vast majority of studies evaluated a combination of interventions, those studies that incorporated the community as a resource were most successful. In addition, providing education and behavior reminders proved effective and should be accompanied by community and peer efforts for best results. Multi-level interventions, such as combining individual and community-level interventions showed promising results for long term ART adherence.

Defining and utilizing individualized learning objectives to achieve learning priorities for global health leaders

INTRODUCTION

Learning objectives (LOs) are a common tool used to define learning goals and guide curricula. As the field of global health has expanded, more rigorous and tailored approaches to effectively teach the next generation of the workforce are needed. The STAR project developed and utilized individualized LOs as the basis for on-the-job learning plans for senior global health leaders from low- and middle-income countries and from the US.

METHODS

We analyzed basic demographic information and LOs from 36 STAR fellows. Descriptive statistics provided an overview of the STAR fellows, competency areas and planned outputs of their LOs. We utilized qualitative thematic analysis to further explore the LOs themselves.

RESULTS

STAR fellows were based in the US and in low- and middle-income countries (LMICs). The majority had over 10 years of experience and at least one advanced degree. Fellows commonly worked on LOs related to capacity strengthening, communications, and development practice. Capacity strengthening LOs focused on mentorship, decision-making, and technical skills such as data analysis. Communications LOs focused on language skills, dissemination of information, and writing. Development practice LOs included gaining understanding of key stakeholders in global health and building effective partnerships and teams.

DISCUSSION

Our experience developing tailored LOs provided deeper understanding of diverse learning needs of global health leaders. While not representative of all global health learners, we captured priorities of senior US- and LMIC-based leaders and identified common themes for learning. Despite the labor required to tailor curricula in this way, more global health education programs can benefit by integrating similar processes.

The relationship between the recognition of specific basic emotions and negative symptom domains in patients with schizophrenia spectrum disorders

Introduction

Current research suggests emotion recognition to be significantly impaired in individuals with schizophrenia spectrum disorders (SSD), whereby negative symptoms are theorised to play a crucial role. Emotion recognition deficits are assumed to be predictors of transition from clinical high risk to schizophrenia. So far, little attention has been given hereby to the subdomains of negative symptoms and recognizing the individual basic emotions.

Objectives

Our study aimed to explore the relationship between the recognition of the basic emotions and each negative symptom domain.

Methods

66 patients with a SSD diagnosis were recruited at the Charité – Universitätsmedizin Berlin. Correlational and regression analyses to control for the covariates (age, education, sex) were conducted between the recognition of the six basic emotions (anger, disgust, fear, happiness, sadness, surprise) using the Emotion Recognition Task of the Cambridge Neuropsychological Test Automated Battery (CANTAB) and the seven different subdomains of negative symptoms of the Positive and Negative Syndrome Scale (PANSS).

Results

revealed significantly negative correlations of blunted affect with the recognition of happiness, fear, and disgust. Difficulties in abstract thinking, also correlated positively with the recognition of fear. Additionally, we found a significant positive correlation between stereotyped thinking and difficulties in abstract thinking with the response latency in emotion recognition.

Conclusions

Individuals with SSD and domains of negative symptoms showed specific impairments in recognizing the representation of basic emotions. A longitudinal design to make causality statements would be useful for future research. Moreover, emotion recognition should be considered for early detection and individualized treatment.

Disclosure

No significant relationships.

The effect of intranasal oxytocin application and mindfulness-based group therapy for patients with schizophrenia spectrum disorders – A study protocol

Introduction

Research indicates improvements in negative symptoms and empathy for schizophrenia spectrum disorders (SSD) after mindfulness-based interventions (MBI). Current treatment approaches for SSD remain limited regarding their effectiveness on negative symptoms and sociocognitive deficits. After oxytocin (OXT) administration, especially in a positive social context, an increase in empathy could be shown. The effect of mindfulness in combination with OXT has not yet been examined.

Objectives

This study investigates the additional effect of OXT administration combined with MBI on empathy and negative symptoms in patients with SSD.

Methods

An experimental, randomised, triple-blinded, placebo-controlled study is proposed. Based on power calculations, 140 participants with SSD will be recruited at Charité – Universitätsmedizin Berlin. A dose of intranasal oxytocin with 24 I.U. or placebo will be administered 45 minutes before each session. Following each administration, a total of four MBI interventions will take place for two weeks. Empathy as primary outcome will be measured using validated psychometric questionnaires. Outcomes, including negative symptoms and OXT plasma levels, will be measured at baseline and post-intervention. A 2x2 mixed-model ANCOVA design with time as within- and group as between-subject factor will be calculated to assess empathy and negative symptom changes.

Results

The study hypothesises that applying intranasal oxytocin in combination with MBI will increase empathy and reduce negative symptoms in patients with SSD.

Conclusions

Findings could provide insight into enhancing therapies like MBI by utilising OXT as a possible supplementary treatment option. Findings could therefore pave the way for a personalised psychiatric medicine treatment for individuals with SSD.

Disclosure

No significant relationships.

A Systematic Review of HIV Testing Implementation Strategies in Sub-Saharan African Countries

HIV/AIDS remains a looming presence in public health across the world, particularly in Sub-Saharan Africa. The HIV Care Cascade hinges on testing and knowledge of HIV status. Though significant advances have been made in diagnosing people living with HIV (PLHIV), limitations in understanding which strategies are best suited to certain regions or populations have contributed to the uneven distribution in the success of various HIV testing strategies. Here, we present a conceptual framework that outlines effective HIV testing strategies for four target groups. This framework is based on a systematic literature review of articles published from January 1st, 2008, to December 31st, 2019. The effectiveness of HIV testing strategies depends on various factors including the setting, type of test and service providers. Multiple strategies are needed to reach the UNAIDS target of 95% of individuals knowing their HIV status. Expansion of community-based approaches, self-testing and HIV testing services in antenatal care will further improve the state of HIV testing in Sub-Saharan Africa.

Increasing sample diversity in psychiatric genetics - Introducing a new cohort of patients with schizophrenia and controls from Vietnam - Results from a pilot study

OBJECTIVES

Genome-Wide Association Studies (GWAS) of Schizophrenia (SCZ) have provided new biological insights; however, most cohorts are of European ancestry. As a result, derived polygenic risk scores (PRS) show decreased predictive power when applied to populations of different ancestries. We aimed to assess the feasibility of a large-scale data collection in Hanoi, Vietnam, contribute to international efforts to diversify ancestry in SCZ genetic research and examine the transferability of SCZ-PRS to individuals of Vietnamese Kinh ancestry.

METHODS

In a pilot study, 368 individuals (including 190 SCZ cases) were recruited at the Hanoi Medical University's associated psychiatric hospitals and outpatient facilities. Data collection included sociodemographic data, baseline clinical data, clinical interviews assessing symptom severity and genome-wide SNP genotyping. SCZ-PRS were generated using different training data sets: (i) European, (ii) East-Asian and (iii) trans-ancestry GWAS summary statistics from the latest SCZ GWAS meta-analysis.

RESULTS

SCZ-PRS significantly predicted case status in Vietnamese individuals using mixed-ancestry (R² liability = 4.9%, p = 6.83 × 10^-8), East-Asian (R² liability = 4.5%, p = 2.73 × 10^-7) and European (R² liability = 3.8%, p = 1.79 × 10^-6) discovery samples.

DISCUSSION

Our results corroborate previous findings of reduced PRS predictive power across populations, highlighting the importance of ancestral diversity in GWA studies.

The geography of emergency department-based HIV testing in South Africa: Can patients link to care?

BACKGROUND

Emergency Departments (EDs) can serve as clinical sites for identification of new HIV infections and their entry into care. We examined if HIV-positive patients who present to EDs in South Africa are able to successfully link to care.

METHODS

We conducted a one-year longitudinal prospective cohort study in four hospitals across the Eastern Cape, South Africa, with participants followed between July 2016 and July 2018. All adult, non-critical patients presenting to the ED were systematically approached, asked about their HIV status, and, if unknown, offered a point-of-care (POC) HIV test. All HIV-positive patients were further consented to participate in a follow-up study to assess subsequent linkage to care and distance from "home" to ED. Linkage to care was defined as self-reported linkage (telephonic) or evidence of repeated CD4/viral load testing in the National Health Laboratory System (NHLS) at either the 6- or 12-months post index ED visit.

FINDINGS

A total of 983 HIV-positive patients consented to participate in the study. In the 12 months following their ED visit, 34·1% of patients demonstrated linkage to care (335/983), 23·8% did not link to care (234/983), and 42·1% (414/983) were lost to follow-up. Though not statistically significant, a high percentage of young men (27/50, 54%) and those presenting with a trauma-related complaints (100/205, 48.8%) did not link to care. A considerable proportion of patients (105/454, 23·2%,) resided 50 or more kilometers from their index ED sites, though there was not a significant difference in linkage to care rate between those who lived closer or further from the ED.

INTERPRETATION

We have shown that strategies to improve linkage to care from the ED should consider the high rates of poor linkage among young men and those presenting to the ED with trauma. Furthermore, innovative linkage to care solutions will need to account for the unique geographical consideration of this population, given that many ED patients will need to continue care at a site distant from the diagnosis site.

FUNDING

This research was supported by the South African Medical Research Council, the Division of Intramural Research, the National Institute of Allergy and Infectious Diseases, National Institutes of Health, and the Johns Hopkins Center for Global Health.

REAPing the benefits: development and use of a structured evaluation framework to codify learning resources for Global Health professionals

BACKGROUND

The learning opportunities for global health professionals have expanded rapidly in recent years. The diverse array of learners and wide range in course quality underscore the need for an improved course vetting process to better match learners with appropriate learning opportunities.

METHODS

We developed a framework to assess overall course quality by determining performance across four defined domains Relevance, Engagement, Access, and Pedagogy (REAP). We applied this framework across a learning catalogue developed for participants enrolled in the Sustaining Technical and Analytic Resources (STAR) project, a global health leadership training program.

RESULTS

The STAR learning activities database included a total of 382 courses, workshops, and web-based resources which fulfilled 531 competencies across three levels: core, content, and skill.

RELEVANCE

The majority of activities were at an understanding or practicing level across all competency domains (486/531, 91.5%). Engagement: Many activities lacked any peer engagement (202/531, 38.0%) and had limited to no faculty engagement (260/531, 49.0%). Access: The plurality of courses across competencies were offered on demand (227/531, 42.7%) and were highly flexible in pace (240/531, 45.2%). Pedagogy: Of the activities that included an assessment, most matched activity learning objectives (217/531, 40.9%).

CONCLUSIONS

Through applying REAP to the STAR project learning catalogue, we found many online activities lacked meaningful engagement with faculty and peers. Further development of structured online activities providing learners with flexibility in access, a range of levels of advancement for content, and opportunities to engage and apply learning are needed for the field of global health.

Calibrating a chief complaint list for low resource settings: a methodologic case study

BACKGROUND

The chief or presenting complaint is the reason for seeking health care, often in the patient's own words. In limited resource settings, a diagnosis-based approach to quantifying burden of disease is not possible, partly due to limited availability of an established lexicon or coding system. Our group worked with colleagues from the African Federation of Emergency Medicine building on the existing literature to create a pilot symptom list representing an attempt to standardize undifferentiated chief complaints in emergency and acute care settings. An ideal list for any setting is one that strikes a balance between ease of use and length, while covering the vast majority of diseases with enough detail to permit epidemiologic surveillance and make informed decisions about resource needs.

METHODS

This study was incorporated as a part of a larger prospective observational study on human immunodeficiency virus testing in Emergency Departments in South Africa. The pilot symptom list was used for chief complaint coding in three Emergency Departments. Data was collected on 3357 patients using paper case report forms. Chief complaint terms were reviewed by two study team members to determine the frequency of concordance between the coded chief complaint term and the selected symptom(s) from the pilot symptom list.

RESULTS

Overall, 3537 patients' chief complaints were reviewed, of which 640 were identified as 'potential mismatches.' When considering the 191 confirmed mismatches (29.8%), the Delphi process identified 6 (3.1%) false mismatches and 185 (96.9%) true mismatches. Significant chief-complaint clustering was identified with 9 sets of complaints frequently selected together for the same patient. "Pain" was used 2076 times for 58.7% of all patients. A combination of user feedback and expert-panel modified Delphi analysis of mismatched complaints and clustered complaints resulted in several substantial changes to the pilot symptom list.

CONCLUSIONS

This study presented a systematic methodology for calibrating a chief complaint list for the local context. Our revised list removed/reworded symptoms that frequently clustered together or were misinterpreted by health professionals. Recommendations for additions, modifications, and/or deletions from the pilot chief complaint list we believe will improve the functionality of the list in low resource environments.

The relationship between mindfulness, depression, anxiety, and quality of life in individuals with schizophrenia spectrum disorders

Introduction

Mindfulness-based interventions have received growing attention over the last years for the treatment of various mental disorders, including schizophrenia spectrum disorders (SSD), demonstrating their transdiagnostic validity. However, no study has examined the relationship of probable mechanisms underlying the therapeutic effects of mindfulness in SSD.

Objectives

The current study examines the relationship between mindfulness, depression, anxiety, and quality of life in individuals with SSD through quantitative measures.

Methods

A total of 83 participants with SSD were recruited at the in- and outpatient facility of the Charité – Universitätsmedizin Berlin in Germany. Participants completed the Southampton Mindfulness Questionnaire, Comprehensive Inventory for Mindful Experiences, and Freiburger Mindfulness Inventory, the Depression, Anxiety, Stress Scale, and the World Health Organization Quality of Life Questionnaire. PROCESS analysis examined the relationship between mindfulness and quality of life and the mediating role of depression and anxiety.

Results

Indicated a significant positive association between mindfulness and physical health, psychological and environmental quality of life. Depression and anxiety were found to mediate this relationship, with higher depression and anxiety scores being related to lower mindfulness and quality of life. In this relationship, however, depression was found to be the stronger predictor.

Conclusions

The findings of this study provide insight into the mechanisms of mindfulness. Initial evidence for the transdiagnostic and process-based clinical relevance of MBIs for SSD has been found and future studies can further explore the role of mindfulness for central therapeutic processes of change by employing longitudinal designs.

Disclosure

No significant relationships.

Mindfulness-based group therapy for inpatients with schizophrenia spectrum disorders – feasibility, acceptability, and preliminary outcomes of a rater-blinded randomized controlled trial

Introduction

The therapeutic effectiveness of mindfulness-based interventions (MBIs) has been shown for various mental disorders. However, for schizophrenia spectrum disorders (SSD), only a few trials have been conducted, mostly in outpatient settings.

Objectives

This study aimed to investigate feasibility, acceptability, and preliminary effectiveness of a four-week mindfulness-based group therapy (MBGT) for in-patients with SSD.

Methods

A pre-registered randomized controlled trial (RCT) was conducted at the in-patient ward for SSD. All measures were employed at baseline, post-intervention (4-weeks), and follow-up (12-weeks). The primary outcome was ‘mindfulness’. Secondary outcomes were rater-blinded positive- and negative symptoms, depression, social functioning, as well as self-rated mindfulness, depression, anxiety, psychological flexibility, quality of life, and medication regime.

Results

N=40 participants were randomized into either four-week treatment-as-usual (TAU; n=19) or MBGT+TAU (n = 21). Protocol adherence was 95.2%, and the retention rate to treatments was 95%. ANCOVA analysis revealed significant improvements in the MBGT+TAU compared to TAU for the primary outcome and negative symptoms. Exploratory analyses showed medium-to-large intervention effects on secondary outcomes mindfulness, positive, negative, and depressive symptoms, psychological flexibility, quality of life, and social functioning for MBGT+TAU and small-to-moderate changes on positive symptoms and social functioning for TAU. No serious adverse effects were reported.

Conclusions

This study supports the feasibility and acceptability of MBGT for in-patients with SSD, including high protocol adherence and retention rates. A proof of concept of the MBIs and corresponding improvements on various clinical and process parameters warrant a fully powered RCT to determine effectiveness, cost-efficiency, and longitudinal outcomes of MBGT for SSD.

Disclosure

No significant relationships.

Yoga-based group therapy for in-patients with schizophrenia spectrum disorders – a qualitative approach

Introduction

Yoga may pose a promising complementary therapy in the multimodal treatment of schizophrenia spectrum disorders (SSD). However, to date, no studies have qualitatively examined the patients’ experience of practising Yoga.

Objectives

This qualitative study aimed to assess the mechanisms and processes of Yoga-based group therapy (YBGT) for in-patients with SSD by exploring their subjective experiences.

Methods

Twenty-five semi-structured interviews were conducted with in-patients with SSD after they participated in a YBGT session. Interviews were transcribed, coded by two independent researchers, and analysed using an inductive thematic approach. The research team collaboratively discussed emerging categories to reduce redundancy and form meaningful themes and subthemes.

Results

The analysis revealed seven main themes. YBGT was perceived as feasible and focusing on individual adaptation, captured by the theme ‘inclusivity’. Nevertheless, participants encountered ‘challenges’; thus, physical limitations need to be considered. While practising together, participants experienced ‘interconnectedness’ and developed a ‘mindful stance’ as they accepted their limitations and adapted exercises with self-compassion. Following the flow of asanas required physical persistence, which ultimately led many participants to experience ‘confidence’ and ‘relaxation’. YBGT affected ‘symptom representation’ as heightened awareness led participants to notice impeding as well as improved symptoms.

Conclusions

YBGT seemed to have various promising effects on in-patients with SSD. Future research should examine to what extent these effects can be sustained and how the mindful approach during YBGT can be transferred to areas outside the Yoga class. Furthermore, a randomised-controlled trial could investigate the effectiveness of a manualised YBGT.

Disclosure

No significant relationships.

Introducing a psychiatric genetic cohort of schizophrenia patients and controls from Vietnam

Introduction

Genome-wide association studies (GWAS) have successfully revealed genetic risk variants for schizophrenia (SCZ). However, the vast majority of GWAS largely comprise European samples. As a result, the derived polygenic risk scores (PRS) show decreased predictive power when applied to non-European populations.

Objectives

A long-term scientific cooperation between the Charité Universitätsmedizin Berlin and the Hanoi Medical University aims to address this limitation by recruiting a large genetic cohort of comprehensively phenotyped schizophrenia patients and controls in Vietnam.

Methods

A pilot study was conducted at the Department of Psychiatry of the Medical University Hanoi in 2017. Data collection encompassed i) genome-wide SNP genotyping of 200 schizophrenia patients and 200 control subjects ii) structured interviews to assess symptom severity (PANSS), iii) clinical parameters (e.g. duration of illness, medication) and demography.

Results

SCZ-PRS of the pilot sample (N=400) were generated using different training data sets: i) European, ii) East-Asian and iii) mixed GWAS summary statistics from the Psychiatric Genomics Consortium’s latest discovery sample. Most variance explained was observed using a mixed discovery sample (R²liability=0.053, p=3.11*10^-8, Pd <0.5), followed by PRS based on the East-Asian summary statistics (R²liability=0.0503, p=6.78*10^-8, Pd <1) and the European sample (R²liability=0.0363, p = 4.26*10^-6, Pd <0.01).

Conclusions

With this pilot project we established an efficient recruitment, genotyping and data analysis pipeline. Our results corroborate previous findings indicating that transferability of PRS across populations depends on the ancestral composition of the initial discovery dataset. We therefore aim to expand data collection efforts in the future in order to improve risk prediction across diverse populations.

Disclosure

No significant relationships.

Feasibility of implementing same-day antiretroviral therapy initiation during routine care in Ekurhuleni District, South Africa: Retention and viral load suppression

Background

Same-day initiation (SDI) of antiretroviral therapy (ART) has been advocated as an approach to increase linkage to care and overall ART initiation. Clinical trials have demonstrated impressive benefits. However, questions regarding patient preparedness and retention in care remain for routine implementation of this approach.

Objectives

In this study, we sought to describe SDI of ART during routine care delivery and compare time to ART initiation on longitudinal care outcomes.

Method

We performed a retrospective chart review of 100 consecutive individuals, newly diagnosed with HIV, from 10 health facilities across Ekurhuleni, from January to July 2017. Records were reviewed for a period of 1 year post-diagnosis. Abstracted data included demographics, time to ART initiation, clinic visits and laboratory test results (including viral load testing).

Results

A total of 993 patient records were reviewed, of which 826 were included in the analysis. The majority of patients (752, 91%) had ART initiation recorded, of which 654 (79%) had ART initiated within 30 days, and 224 (27%) had SDI. Uptake of SDI of ART was higher among women (36% vs. 10.4%; p < 0.001) and in younger patients (33.7% in those < 29 years; p < 0.01). Retention in care at 6 months was achieved in 477 (58%) patients. Of those with 6-month viral loads, 350/430 (73%) had a viral load < 400 c/m. Retention in care and viral suppression were similar among those with SDI of ART and later ART initiation.

Conclusion

Same-day initiation of ART was successfully delivered with similar retention and viral load outcomes as subsequent initiation, providing re-assurance for scale-up of this strategy in routine care.

The impact of HIV knowledge and attitudes on HIV testing acceptance among patients in an emergency department in the Eastern Cape, South Africa

BACKGROUND

Transmission of HIV in South Africa continues to be high due to a large proportion of individuals living with undiagnosed HIV. Uptake of HIV testing is influenced by a multitude of factors including the patient's knowledge and beliefs about HIV.

METHODS

This study sought to quantify the impact of knowledge and attitudes on HIV testing acceptance in an emergency department by co-administering a validated HIV knowledge and attitudes survey to patients who were subsequently offered HIV testing.

RESULTS

During the study period 223 patients were interviewed and offered HIV testing. Individuals reporting more negative overall attitudes (p = 0.006), higher levels of stigma to HIV testing (p < 0.001), and individuals who believed their test was confidential (p < 0.001) were more likely to accept an HIV test.

CONCLUSIONS

Interventions focused on improving patient perceptions around testing confidentiality will likely have the greatest impact on testing acceptance in the emergency department.

Targeting the HIV Epidemic in South Africa: The Need for Testing and Linkage to Care in Emergency Departments

BACKGROUND

The Eastern Cape province of South Africa has one of the highest burdens of HIV in the world. Emergency Departments (EDs) can serve as optimal clinical sites for the identification of new HIV infections and entry into care. We sought to determine the current burden of HIV disease among ED patients in the Eastern Cape.

METHODS

We conducted a prospective cross-sectional observational study in the EDs of three Hospitals in the Eastern Cape province of South Africa from June 2017 to July 2018. All adult, non-critical patients presenting to the ED were systematically approached and offered a Point-Of-Care (POC) HIV test in accordance with South African guidelines. All HIV-positive individuals had their blood tested for the presence of antiretroviral therapy (ART) and the presence of viral suppression (≤ 1000 copies/ml). HIV incidence was estimated using a multi-assay algorithm, validated for a subtype C epidemic.

FINDINGS

Of the 2901 patients for whom HIV status was determined (either known HIV-positive or underwent POC HIV testing), 811 (28.0%) were HIV positive, of which 234 (28.9%) were newly diagnosed. HIV prevalence was higher in Mthatha [34% (388/1134) at Mthatha Regional Hospital and 28% (142/512) at Nelson Mandela Academic Hospital], compared to Port Elizabeth [22% (281/1255) at Livingstone Hospital]. HIV incidence was estimated at 4.5/100 person-years (95% CI: 2.4, 6.50) for women and 1.5 (CI 0.5, 2.5) for men. Of all HIV positive individuals tested for ART (585), 54% (316/585) tested positive for the presence of ARTs, and for all HIV positive participants with viral load data (609), 49% (299/609) were found to be virally suppressed.

INTERPRETATION

Our study not only observed a high prevalence and incidence of HIV among ED patients but also highlights significant attrition along the HIV care cascade for HIV positive individuals. Furthermore, despite developing an optimal testing environment, we were only able to enrol a small sub-set of the ED population. Given the high HIV prevalence and high attrition in the ED population, HIV services in the ED should also develop strategies that can accommodate large testing volumes and ART initiation.

Socioeconomic status amplifies genetic effects in middle childhood in a large German twin sample

The Scarr-Rowe hypothesis predicts that the heritability of cognitive abilities is higher in more privileged socioeconomic conditions, meaning that genetic potential can be more fully expressed in environments characterized by high socioeconomic status (SES) compared to low SES. This gene × SES interaction, however, has been replicated mostly in the United States, but not in other Western nations like the United Kingdom. In the current study, we tested the interaction between childhood SES and the heritability of cognitive ability in 3,074 German twin pairs comprising three age cohorts at different developmental stages (mean ages of 11, 17, and 23 years). Higher SES was associated with significantly higher mean cognitive ability scores in the two younger cohorts, with reduced variances at higher SES levels. Results further support the Scarr-Rowe hypothesis in middle childhood, and to some degree in adolescence, but not in adulthood. This indicates that the role of family SES as a moderator of the heritability of cognitive ability changes as children grow older. Moreover, children's shared experiences appear to be explain more variance in cognitive ability at the lower end of the SES distribution in middle childhood and adolescence.

Effect of fetal hemodynamics on growth in fetuses with single ventricle or transposition of the great arteries

OBJECTIVES

As birth weight is a critical predictor of outcome in neonates with congenital heart defect (CHD), the common problem of poor fetal growth in this population is clinically important. However, it is not well understood and the impact of fetal hemodynamics on fetal growth and birth weight in those with CHD has not been assessed. In this study, we sought to evaluate the association between combined cardiac output (CCO) and fetal middle cerebral artery (MCA) and umbilical artery (UA) pulsatility indices (PIs) and fetal growth in different subgroups of CHD, and to study the effects of fetal hemodynamics on late gestational weight gain. We hypothesized that fetuses with CHD will have lower CCO and be smaller at birth.

METHODS

This was a retrospective review of fetal echocardiograms from 67 fetuses diagnosed with hypoplastic left heart syndrome (HLHS, n = 30), non-HLHS single ventricle (SV) (n = 20) or dextrotransposition of the great arteries (d-TGA, n = 17), compared with normal controls (n = 42). CCO was calculated using valvar area, velocity-time integral and heart rate and indexed to estimated fetal weight. MCA- and UA-PI were calculated using systolic, diastolic and mean velocities. Fetal biometry was recorded. Regression models were used to study trends in CCO, MCA- and UA-PI and fetal biometry over gestational age. To evaluate fetal weight gain in late gestation, Z-scores of estimated fetal weight at 30 weeks and birth weight were compared. Regression analysis was used to determine the associations of CCO, indexed CCO and MCA- and UA-PI at 30 weeks with birth weight, length and head circumference Z-scores, in addition to weight gain late in gestation. The gestational age of 30 weeks was chosen based on previous studies that found evidence of poor weight gain in fetuses with CHD in late gestation, starting at around that time.

RESULTS

CCO increased with gestation in all four groups but the rate was slower in fetuses with HLHS and in those with SV. MCA-PI was lower in fetuses with HLHS compared with in those with non-HLHS-SV throughout gestation, suggesting different cerebral blood distribution. At the end of gestation, rate of fetal weight gain slowed in those with HLHS and in those with SV (similar to CCO curves), and head circumference growth rate slowed in all groups but controls. CCO, indexed CCO and MCA- and UA-PI did not correlate with any of the birth measurements or with weight gain late in gestation in fetuses with CHD.

CONCLUSIONS

We found no associations of CCO or MCA- and UA-PI with late gestational weight gain or biometry at birth in fetuses with CHD. This does not support fetal hemodynamics as the primary driver of suboptimal fetal growth in fetuses with SV. Future research could further explain genetic and placental abnormalities that may affect fetal growth in those with CHD. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.

Factors Associated With End-of-Life Planning in Huntington Disease

OBJECTIVE

Knowledge of one's gene status for adult onset conditions provides opportunity to make advance end-of-life (EOL) plans. The purposes of these analyses were to (1) determine the prevalence of EOL plans, including advance directives (ADs) among persons across 3 stages of Huntington disease (HD) and (2) examine factors associated with having ADs in this sample.

METHODS

Data are from 503 participants in the HD Quality of Life study. Participants completed an online health-related quality-of-life survey that included questions regarding EOL planning and self-reported HD symptoms. Frequencies were calculated for EOL planning by the HD stage. Bivariate analysis and logistic regression were used to identify variables associated with having ADs.

RESULTS

A total of 38.2% of participants stated they had ADs and fewer than half had other EOL plans. Being older, increased HD stage, more years of education, lower anxiety, more swallowing symptoms, and higher meaning and purpose were associated with having ADs.

CONCLUSION

The prevalence of ADs in our sample is comparable to the general US population, but surprisingly low, considering the severity and long disease course of HD.

PRACTICE IMPLICATIONS

Health-care providers should develop specific interventions early in the disease process to increase ADs in this population.

Acculturation strategies and severity of depression among Vietnamese migrants

Aims

Migration with its long-term changes and the resulting task to adjust to the new environment has been associated with an increased risk for mental health problems. This study aims to gain further insight on the relationship between the fours acculturations strategies (integration, assimilation, separation, marginalization) and severity of depression.

Methods

A total of n = 79 first generation Vietnamese outpatients from a psychiatric outpatient clinic for Vietnamese migrants in Germany were investigated regarding self-reported depressive symptoms (patient health questionnaire-9) and acculturation (Stephenson multigroup acculturation scale; SMAS).

Results

Patients with an integration acculturation strategy reported lower severity of depression compared to marginalized patients, who reported the highest severity of depression.

Conclusion

The results implicate that the integration of both the mainstream society and the ethnic society might serve as a resource, whereas the rejection of both societies might increase the risk of depression.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Differences in symptom expression between Vietnamese and German patients utilizing a psychiatric outpatient service using the PHQ

Objective

Despite a large body of work on somatic symptom presentation among people of Asian descent, research has shown heterogeneous results. Examining symptom presentation in clinically and ethnically well-characterized populations constitutes a first step towards better understanding differing patterns symptom of presentation. This is the first larger study aiming to compare Vietnamese and German psychiatric outpatients regarding symptom presentation.

Methods

110 Vietnamese and 109 German patients seeking psychiatric treatment at two outpatient clinic services in Berlin were asked to complete the patient health questionnaire (PHQ). Comparisons of Vietnamese and German patients were conducted using independent t-tests. The somatic symptom module (PHQ-15), the depression module (PHQ-9) and the original PHQ-modules examining anxiety and psychosocial stress levels were compared for both groups using multivariate analysis. Categorical variables were evaluated using Chi2 analysis. Crohnbach's alpha was calculated separately for both groups and all PHQ modules.

Results

Vietnamese patients endorsed significantly higher levels of somatic symptoms overall and on individual somatic items, such as pain-related disturbancies. Yet, German and Vietnamese patients did not differ in terms of depression severity. Vietnamese patients with fewer German language skills showed a significantly higher tendency for somatization. While German patients showed higher total scores on the anxiety- and stress-modules of the PHQ, this difference was not statistically significant. Vietnamese and German patients showed comparable Crohnbach's alpha for all subscales.

Conclusion

As data was collected from both groups upon the first visit to an outpatient clinic, the symptoms reported could be reflective of culture related symptom awareness when feeling discomfort in the context of mental illness.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Relationship between migration-stressors and self-reported symptoms of depression in an outpatient sample of Vietnamese migrants in Germany

Introduction

Vietnamese migrants under the influence of migration-related stressors (MRS) represent a vulnerable group within the mental health care system in Germany.

Aims

First study examining the relationship between the quantity of experienced MRS and the severity of self-reported symptoms of depression in a Vietnamese outpatient-sample.

Methods

137 first-generation Vietnamese migrants diagnosed with depression were asked to complete the BDI-II and 24 questions about stressful experiences related to the migration process. Linear regression models was performed to examine the influence of the MRS-quantity on BDI-II total score and on BDI-II subscales (Buckley et al., 2001).

Results

A higher number of experienced MRS was found to be related to a higher BDI-II total score, as well as to a higher score on the cognitive subscale in particular. Regarding the cognitive depression-dimension the BDI-II items pessimism, past failure, guilt feelings, punishment feelings and suicidal thoughts were positively related to the MRS-quantity.

Discussion and conclusion

A dose-response-relationship was found, with a higher number of MRS being related to a higher severity level of self-reported depressiveness as well as to a higher level of cognitive depression-symptoms in particular. The increase in suicidal ideations in the light of MRS-exposure is in line with findings from other migrant populations. Therapeutic interventions may focus (more) on depressive cognitions as a result of recurring MRS-experiences. Special attention should be placed on suicidal thoughts being boosted by MRS.

Disclosure of interest

The authors have not supplied their declaration of competing interest.