Experimental Verification of the Possibility of Reducing Photoplethysmography Measurement Time for Stress Index Calculation.

Stress is a direct or indirect cause of reduced work efficiency in daily life. It can damage physical and mental health, leading to cardiovascular disease and depression. With increased interest and awareness of the risks of stress in modern society, there is a growing demand for quick assessment and monitoring of stress levels. Traditional ultra-short-term stress measurement classifies stress situations using heart rate variability (HRV) or pulse rate variability (PRV) information extracted from electrocardiogram (ECG) or photoplethysmography (PPG) signals. However, it requires more than one minute, making it difficult to monitor stress status in real-time and accurately predict stress levels. In this paper, stress indices were predicted using PRV indices acquired at different lengths of time (60 s, 50 s, 40 s, 30 s, 20 s, 10 s, and 5 s) for the purpose of real-time stress monitoring. Stress was predicted with Extra Tree Regressor, Random Forest Regressor, and Gradient Boost Regressor models using a valid PRV index for each data acquisition time. The predicted stress index was evaluated using an R2 score between the predicted stress index and the actual stress index calculated from one minute of the PPG signal. The average R2 score of the three models by the data acquisition time was 0.2194 at 5 s, 0.7600 at 10 s, 0.8846 at 20 s, 0.9263 at 30 s, 0.9501 at 40 s, 0.9733 at 50 s, and 0.9909 at 60 s. Thus, when stress was predicted using PPG data acquired for 10 s or more, the R2 score was confirmed to be over 0.7.

Factors Influencing Recovery and Well-Being Among Asian Survivors of International Criminal Sex Trafficking in an Urban U.S. City.

Sex trafficking is serious form of gender-based violence that results in profound adverse health outcomes, yet one that is poorly understood. New York City is a major hub for sex trafficking, with a significant but unquantified number of victims originating from East Asian countries and trafficked via illicit massage businesses. Peer-reviewed studies among Asian survivors of international criminal sex trafficking do not exist. The aim of this study is to qualitatively examine the factors at various levels of influence that impact the recovery and reintegration process of Asian criminal sex trafficking survivors in the United States from the perspective of survivors and front-line service providers. The study was guided by community-based participatory research and trauma-informed approaches, leveraging a collaboration with a well-established service provider organization. Ten in-depth interviews were conducted between 2018 and 2019 with three Korean survivors and seven key informants who were anti-trafficking service providers working with East Asian clients. Data were analyzed using a grounded theory approach. Survivors and service providers vocalized factors at multiple levels that either facilitate or impede recovery and well-being. Levels of influence included structural (e.g., poverty/debt bondage, immigration status, limited English proficiency), cultural (e.g., fatalism, collectivism), institutional (e.g., lack of culturally appropriate, trauma-informed care), interpersonal (e.g., exploitation, social support), and individual (e.g., resilience). Stigma was a crosscutting factor that spanned all levels of influence. This study highlights the voices of survivors and front-line service providers to understand the lives of an under-researched population of Asian sex trafficking survivors. Ultimately, the root, structural causes of survivor marginalization need to be addressed, which stem from the intersection of class-, gender-, and race-related inequities. While survivors continue to experience exploitation and marginalization post-trafficking, they also carry an enormous amount of resilience that must be leveraged in their path to recovery from trauma.

Non-Partner Sexual Violence Among Asian American, Native Hawaiian, and Pacific Islander Adults: A Scoping Review.

The Asian American, Native Hawaiian, and Pacific Islander (AANHPI) population is rapidly growing in the United States. Despite sexual violence being a persistent and significant public health issue, research on this topic among AANHPIs is lacking. The study objective is to conduct a systematic scoping review on the published literature on non-partner sexual violence among AANHPIs to identify gaps and priorities to inform actionable research. The systematic review was conducted following the PRISMA Protocol for Systematic Reviews. Database searches were conducted of MEDLINE, Embase, PsycINFO, and Cochrane Central of Clinical Trials, along with and AgeLine and CINAHL for peer-reviewed articles describing non-partner sexual violence among AANHPIs. The search was limited to articles in English published after 1990. Each citation was reviewed by two trained independent reviewers, with a third researcher resolving any conflicts. Of the 998 articles screened and subsequently 496 full-text articles assessed for eligibility, 38 articles were included in the final analysis. The majority of studies did not report disaggregated data for AANHPI subgroups, with most focusing on East Asian subgroups and little evidence on NHPI communities. Most studies were cross-sectional, quantitative, and employed non-probability sampling. There was a lack of studies on effectiveness of interventions and validity of sexual violence-related measures. Our review provides a first step in mapping the extant literature on non-partner sexual violence among this underserved and under-researched population and will serve as a guide for future research, policy, and intervention.