Publications by authors named "Ivan Wu"

Introduction: Asian American adolescents are equally or more likely to experience depression but less likely to seek treatment for depression than adolescents from other racial and ethnic groups in the US. The current study examined the long-term effects of parental care, parental control, and parental closeness on depression and counseling use among Asian American adolescents.

Methods: Using data from the National Longitudinal Study of Adolescent Health (Add Health), we conducted a cross-lagged path analysis with 270 Asian American adolescents (48.

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The objective of this study was to investigate changes in physical activity patterns associated with the COVID-19 pandemic in individuals with overweight and obesity who were participating in a school district worksite weight loss program. We conducted comparative design interrupted time series analyses on physical activity device (Fitbit) data from the 2018-2019 and 2019-2020 school years (N = 211). We administered a questionnaire in 2020 to supplement device data.

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Context: Cancer patients often experience cancer-related fatigue (CRF) and sleep disturbances due to cancer and cancer treatment, and symptoms can persist long after treatment. Despite these common occurrences, few studies simultaneously characterize CRF and sleep architecture among cancer patients.

Objectives: The objective was to characterize CRF and the sleep architecture of patients seen in a CRF clinic and sleep clinic at the University of Texas MD Anderson Cancer Center.

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Mobile applications and paired devices allow individuals to self-monitor physical activity, dietary intake, and weight fluctuation concurrently. However, little is known regarding patterns of use of these self-monitoring technologies over time and their implications for weight loss. The objectives of this study were to identify distinct patterns of self-monitoring technology use and to investigate the associations between these patterns and weight change.

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Study Objectives: The primary aim of the study was to estimate the effect of sleep duration on prospective type 2 diabetes (T2D) risk across demographic characteristics and follow-up periods, and test body mass index (BMI) as a mediator and moderator.

Methods: Data included adults (M = 39.0 ± 12.

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The advancement of wearable technologies provides opportunities to continuously track individuals' daily activity levels and sleep patterns over extended periods of time. These data are useful in examining the reciprocal relationships between physical activity and sleep at the intrapersonal level. The purpose of this study is to test the bidirectional relationships between daily activity levels and sleep duration.

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Objective: Posttraumatic stress disorder (PTSD) is a significant condition and frequently observed among breast cancer survivors. Extant literature has demonstrated the effectiveness of expressive writing interventions in reducing PTSD among breast cancer survivors. However, little is known about how different PTSD symptom clusters influence each other over time during and after the expressive writing intervention among breast cancer survivors.

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Purpose: Posttraumatic stress disorder (PTSD) is a significant condition among breast cancer survivors (BCSs). However, few intervention studies for cancer-related PTSD were conducted among Asian cancer survivors. We evaluated a culturally sensitive expressive writing intervention, which combined cognitive reappraisal and emotional disclosure, in reducing PTSD among Chinese American BCSs.

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Purpose: The aim of the current study was to examine the incidence of poor sleep quality, medication use, and dysfunction and the association of self-stigma and perceived social constraints (i.e., ambivalence over emotional expression; AEE) on sleep among a sample of Chinese American breast cancer survivors.

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In this study, we examined how racial discrimination and neighborhood perceptions relate to physical activity and sedentary behavior mediated through depression symptoms. Data were from the first year of a longitudinal cohort study, Project Creating a Higher Understanding of cancer Research and Community Health (CHURCH), based on a convenience community sample of church-attending African Americans collected between April 2012 and March 2013 (N = 370) in Houston, Texas. Measures included racial discrimination, perceived neighborhood problems and vigilance, depression (CES-D), physical activity (IPAQ-short), and sedentary behavior.

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Objectives: To examine the role of health behaviors (eg, physical activity, sedentary behaviors, and diet) in the relationship between sleep (ie, duration and quality) and BMI among African American adults.

Design: A cross-sectional self-report questionnaire included questions related to health and health-related behaviors.

Setting: This study was based on data from the CHURCH study, which aimed to address cancer health disparities among church-going African Americans in Houston, TX.

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Objectives: Highly acculturated Chinese American breast cancer survivors have greater access to health care providers, are English language proficient, and have more knowledge about the health care system. However, less is known about the potential psychosocial factors that may account for the health benefits of acculturation. As such, the current study seeks to understand how mainstream acculturation is associated with higher quality of life by investigating self-stigma, ambivalence over emotion expression (AEE), and intrusive thoughts, as serial mediators among Chinese breast cancer survivors.

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We investigated class clustering patterns of four behaviors-physical activity, fruit and vegetable (F&V) intake, smoking, and alcohol use-in a faith-based African American cohort. Guided by socio-ecological models, we also examined the psychosocial and neighborhood social environmental factors associated with the clustering patterns. Participants were 1,467 African American adults recruited from a mega church in the metropolitan Houston, TX, in 2008-2009.

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Neuropsychologists attempting to provide an ethical and clinically useful assessment of intellectual functioning among immigrant youth face great challenges. For instance, immigrant youth undergo an acculturation process that can profoundly affect cognitive development including the reliability and validity of norm-referenced intelligence tests. This study explored the clinical utility of the WASI-II among male adolecent Arab Americans ( = 80).

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This study presents the prevalence and likelihood of US individuals younger than 18 years meeting recommendations on time spent sleeping, in physical activity, and in front of screens.

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Objective: The psychosocial correlates of physical functioning and limitations are not well-known among Chinese breast cancer survivors. Previous research suggests a link between ambivalence over emotional expression (AEE) and physical functioning. The current study built upon this research by examining post-traumatic stress symptoms (PTSS) as a mechanism.

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Background: Expressive writing interventions are shown to confer physical and psychological benefits for Caucasian cancer survivors. This study evaluated the health benefits of an expressive writing intervention among breast cancer patients in mainland China.

Methods: Stage I-III Chinese breast cancer survivors undergoing chemotherapy were recruited in Shanghai, China.

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The current study examined reports of stigma toward mental health services, depressive symptoms, flourishing, and mental health service use among a sample of 8,285 college students across the United States who completed the Healthy Minds Study. The study aimed to: (a) identify profiles of public and personal stigma against mental health service utilization, and (b) examine the demographic predictors of stigma group membership and mental health service utilization. Latent profile analyses revealed 3 distinct groups based on public and self-stigma (i.

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Objectives: Pneumonia severity tools were primarily developed in cohorts of hospitalized patients, limiting their applicability to the emergency department (ED). We describe current community ED admission practices and examine the accuracy of the CURB-65 to predict 30-day mortality for patients, either discharged or admitted with community-acquired pneumonia (CAP).

Methods: A retrospective, observational study of adult CAP encounters in 14 community EDs within an integrated healthcare system.

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The authors built upon models of workplace bullying to examine how racial/ethnic bullying can lead to racial/ethnic minorities' sensitivity to future discrimination via its effects on race/ethnic-related stress. With a sample of racial/ethnic minorities, they found support for this process. Individual differences in social dominance orientation (SDO) also attenuated the mediation: The indirect effect of race/ethnic-related stress was weaker for minorities who endorse hierarchy legitimizing ideologies (high in SDO) compared to minorities low in SDO.

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