Impact of social determinants of health on time to antiretroviral therapy initiation and HIV viral undetectability for migrants enrolled in a multidisciplinary HIV clinic with rapid, free, and onsite B/F/TAF: 'The ASAP study'.

OBJECTIVE: Multidisciplinary care with free, rapid, and on-site bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) dispensation may improve health outcomes among migrants living with HIV. However, models for rapid B/F/TAF initiation are not well studied among migrants living with HIV, and an understanding of how social determinants of health (SDH) may affect HIV-related health outcomes for migrants enrolled in such care models is limited. METHODS: Within a 96-week pilot feasibility prospective cohort study at a multidisciplinary HIV clinic, participants received free B/F/TAF rapidly after care linkage. The effects of SDH (i.e., birth region, sexual orientation, living status, education, employment, French proficiency, health coverage, use of a public health facility outside our clinic for free blood tests, and time in Canada) and other covariates (i.e., age, sex) on median time to antiretroviral therapy (ART) initiation and HIV viral undetectability from care linkage were calculated via survival analyses. RESULTS: Thirty-five migrants were enrolled in this study. Median time to ART initiation and HIV undetectability was 5 days (range 0-50) and 57 days (range 5-365), respectively. Those who took significantly longer to initiate ART were aged <35 years, identified as heterosexual, had less than university-level education, or were unemployed. No factor was found to significantly affect time to undetectability. CONCLUSION: Despite the provision of free B/F/TAF, several SDH were linked to delays in ART initiation. However, once initiated and engaged, migrants living with HIV reached HIV undetectability efficiently. Findings provide preliminary support for adopting this care model with migrants living with HIV and suggest that SDH should be considered when designing clinical interventions for more equitable outcomes.

Patient-reported outcomes and experiences of migrants enrolled in a multidisciplinary HIV clinic with rapid, free, and onsite treatment dispensation: the 'ASAP' study.

BACKGROUND: Scholars recommend providing migrants living with HIV (MLWH) with free treatment, rapidly, once linked to care to optimize their HIV-related experiences and health outcomes. Quantitative evaluations of patient-reported measures for MLWH in such models are necessary to explore the viability of these recommendations. METHODS: Within a 96-week prospective cohort study at a multidisciplinary HIV clinic, participants received bictegravir/emtricitabine/tenofovir alafenamide (B/F/TAF) for free and rapidly following care linkage. Eight patient-reported measures were administered at weeks 4, 24, and 48: (1) mMOS-SS to measure perceived social support; (2) IA-RSS to measure internalized stigma; (3) K6 to measure psychological distress; (4) PROMIS to measure self-efficacy with treatment taking; (5) G-MISS to measure perceived compliance with clinicians' treatment plans; (6) HIVTSQ to measure treatment satisfaction; (7) CARE to measure perceived provider empathy; and (8) PRPCC to measure perceived clinician cultural competence. Linear mixed modelling with bootstrapping was conducted to identify significant differences by sociodemographics and time. RESULTS: Across weeks 4, 24, and 48, results suggest that MLWH enrolled in this study experienced moderate levels of social support; elevated levels of HIV-related stigma; moderate levels of distress; high self-efficacy with daily medication self-management; great compliance with clinicians' treatment plans; high treatment satisfaction; high perceived empathy; and high perceived cultural competence. Experience of social support (i.e., mMOS-SS scores) differed significantly by birth region. Experience of HIV-related stigma (i.e., IA-RSS scores) differed significantly by birth region, age, and language. Experience of distress (i.e., K6 scores) differed significantly by sexual orientation. Experience of treatment satisfaction (i.e., HIVTSQ scores) differed significantly by birth region and age. No significant differences were identified by time for any measure. CONCLUSION: Overall, participants expressed positive experiences around treatment and care, alongside comparably lower perceptions of social support, internalized stigma, and distress, potentially underscoring a need to embed targeted, well-funded, and accessible mental health support within HIV care models.

Experiences of Migrant People Living with HIV in a Multidisciplinary HIV Care Setting with Rapid B/F/TAF Initiation and Cost-Covered Treatment: The 'ASAP' Study.

This study aimed to explore the experiences of migrant people living with HIV (MLWH) enrolled in a Montreal-based multidisciplinary HIV care clinic with rapid antiretroviral treatment (ART) initiation and cost-covered ART. Between February 2020 and March 2022, 32 interviews were conducted with 16 MLWH at three time-points (16 after 1 week of ART initiation, 8 after 24 weeks, 8 after 48 weeks). Interviews were analyzed via the Framework Method. Thirty categories were identified, capturing experiences across the HIV care cascade. At diagnosis, most MLWH described "initially experiencing distress". At linkage, almost all MLWH discussed "navigating the health system with difficulty". At treatment initiation, almost all MLWH expressed "being satisfied with treatment", particularly due to a lack of side effects. Regarding care retention, all MLWH noted "facing psychosocial or health-related challenges beyond HIV". Regarding ART adherence, most MLWH expressed "being satisfied with treatment" with emphasis on their taking control of HIV. At viral suppression, MLWH mentioned "finding more peace of mind since becoming undetectable". Regarding their perceived health-related quality of life, most MLWH indicated "being helped by a supportive social network". Efficient, humanizing, and holistic approaches to care in a multidisciplinary setting, coupled with rapid and free ART initiation, seemed to help alleviate patients' concerns, address their bio-psycho-social challenges, encourage their initial and sustained engagement with HIV care and treatment, and ultimately contribute to positive experiences.

Fuzzy logic for elimination of redundant information of microarray data.

Gene subset selection is essential for classification and analysis of microarray data. However, gene selection is known to be a very difficult task since gene expression data not only have high dimensionalities, but also contain redundant information and noises. To cope with these difficulties, this paper introduces a fuzzy logic based pre-processing approach composed of two main steps. First, we use fuzzy inference rules to transform the gene expression levels of a given dataset into fuzzy values. Then we apply a similarity relation to these fuzzy values to define fuzzy equivalence groups, each group containing strongly similar genes. Dimension reduction is achieved by considering for each group of similar genes a single representative based on mutual information. To assess the usefulness of this approach, extensive experimentations were carried out on three well-known public datasets with a combined classification model using three statistic filters and three classifiers.

Hybrid Framework Using Multiple-Filters and an Embedded Approach for an Efficient Selection and Classification of Microarray Data.

A hybrid framework composed of two stages for gene selection and classification of DNA microarray data is proposed. At the first stage, five traditional statistical methods are combined for preliminary gene selection (Multiple Fusion Filter). Then, different relevant gene subsets are selected by using an embedded Genetic Algorithm (GA), Tabu Search (TS), and Support Vector Machine (SVM). A gene subset, consisting of the most relevant genes, is obtained from this process, by analyzing the frequency of each gene in the different gene subsets. Finally, the most frequent genes are evaluated by the embedded approach to obtain a final relevant small gene subset with high performance. The proposed method is tested in four DNA microarray datasets. From simulation study, it is observed that the proposed approach works better than other methods reported in the literature.