Publications by authors named "Philip Siu"

Human papillomavirus (HPV) is the most common sexually transmitted infection in the US. HPV vaccine is a viable source of prevention against high-risk strains that are likely to cause cancer. However, particularly among racial and ethnic minorities such as Chinese Americans, HPV vaccination rates are suboptimal.

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The USA has among the largest immigrant population of any country in the world, and over the past few decades, the proportion of Chinese immigrants in the USA has increased significantly. Immigrants may experience substantial acculturative stress as they learn to navigate their new environment, and this stress can contribute to depressive symptoms and poor mental health. Social support can help mitigate the effects of stress on depressive symptoms, but the protective effects of social support have been reported to differ between men and women.

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Korean Americans report the lowest and declined rates of colorectal cancer (CRC) screening, compared to general population in the United States. The present study aimed to evaluate the efficacy of a community-based multifaceted intervention designed to improve CRC screening among Korean Americans. A cluster-randomized trial involving 30 Korean church-based community organizations (n = 925) was conducted.

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Successful human papilloma virus (HPV) vaccine delivery depends heavily on parents' attitudes, perceptions, and willingness to have their children vaccinated. In this study, we assessed parental knowledge, attitudes, and beliefs about the HPV vaccine, and examine factors associated with willingness to have eligible children receive HPV vaccination. From a community health center serving Chinese members in the Greater Philadelphia area, 110 Chinese-American parents with at least one child aged 11 to 18 who had not received HPV vaccine were recruited.

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Purpose: We examined associations of inflammation with breast density, a marker of breast cancer risk, among female Chinese immigrants and explored whether associations varied by neighborhood environment.

Methods: Assessments of serum C-reactive protein (CRP), soluble tumor necrosis factor receptor 2 (sTNFR2), and breast density were performed among 401 Chinese immigrants across the Philadelphia region. Participant addresses were geocoded, with the majority residing in areas representing traditional urban enclaves (i.

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Objectives: To evaluate the effectiveness of a community-based liver cancer prevention program on hepatitis B virus (HBV) screening among low-income, underserved Vietnamese Americans at high risk.

Methods: We conducted a cluster randomized trial involving 36 Vietnamese community-based organizations and 2337 participants in Pennsylvania, New Jersey, and New York City between 2009 and 2014. We randomly assigned 18 community-based organizations to a community-based multilevel HBV screening intervention (n = 1131).

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Background: Hepatitis C virus (HCV) is a major cause of chronic liver disease and cancer. Vietnamese Americans are at high risk of HCV infection, with men having the highest US incidence of liver cancer. This study examines an intervention to improve HCV knowledge among Vietnamese Americans.

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Background: Chinese immigrants experience increased chronic disease risk following migration to the US. Although the impact of lifestyle changes (e.g.

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Objective: The purpose of this work was to explore clinician and site characteristics that are important to Chinese and Vietnamese immigrant and first-generation youth.

Methods: A 3-stage mixed qualitative-quantitative design consisting of exploratory focus groups, a survey, and explanatory focus groups was used to ensure that all of the ideas were generated, prioritized, and explained by youth. Adolescents of Chinese and/or Vietnamese descent and aged 13 to 18 years were recruited in community centers and schools.

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Hepatitis B (HBV) infection plays a primary role in the development of liver cancer, contributing to nearly 80% of liver cancer cases. Vietnamese males have the highest incidence of liver cancer of any ethnic group, and HBV infection is a serious and prevalent health problem among Vietnamese immigrants. Guided by the Health Belief Model framework, the purpose of the present study was to assess levels of perceived risk, severity, barriers and benefits, and cues to action in HBV screening and vaccination in relation to actual screening and vaccination behavior in a sample of Vietnamese adults.

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Asian Americans are the fastest growing and the second largest foreign-born ethnic group in the United States. Cancer is a leading cause of death among Asian Americans. The Asian Tobacco Education and Cancer Awareness Research (ATECAR) Special Population Network, Center for Asian Health, aimed to reduce or eliminate cancer health disparities in these diverse, underserved populations in Pennsylvania, New Jersey, Delaware, and New York.

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Less acculturated Chinese Americans experience cultural and language barriers. The present study assessed the relationship between linguistic aspects of acculturation and cigarette smoking among Chinese Americans. A cross-sectional, self-administered survey was administered to a consecutive sample of 541 Chinese American adults (aged 18 years or older) attending four pediatric, medical, or dental practices located in Philadelphia's Chinatown from November 2000 to February 2001.

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