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Featured researches published by Thoa Nguyen.


American Journal of Preventive Medicine | 2002

Predictors of cervical Pap smear screening awareness, intention, and receipt among Vietnamese-American women

Tung T. Nguyen; Stephen J. McPhee; Thoa Nguyen; Tram Lam; Jeremiah Mock

BACKGROUND Compared with white women, Vietnamese women in the United States have a higher rate of cervical cancer and lower Papanicolau (Pap) test utilization. We evaluated factors associated with awareness of the Pap test, intention to obtain it, and its receipt in Vietnamese-American women. METHODS In 2000, we conducted a telephone survey of Vietnamese-American women aged >or=18 years living in Santa Clara County, California, and Harris County, Texas. We collected data on sociodemographics, healthcare system access and attitudes, as well as Pap test awareness, attitudes, intentions, and practices. RESULTS Of 1566 subjects, 74% had heard of the Pap test, and 76% had had at least one. Only 42% of those who never had a Pap test had considered obtaining one. There were no significant differences between the two sites. Women aged >or=65 had the lowest rates for all three outcomes. For all women, younger age, being married, having requested a Pap test, physician recommendation, and preferring a female standby if the doctor was male were associated with Pap test intention. Being married, higher level of education, having a female doctor, having a respectful doctor, having requested the test, and physician recommendation were associated with Pap test receipt. CONCLUSION Vietnamese-American women have low rates of Pap test awareness, intention, and receipt. The patient-doctor interaction is an important determinant. Efforts to increase Pap test utilization in this population need to be directed at encouraging physicians to offer the Pap test and empowering women to ask for the test.


Journal of General Internal Medicine | 2003

Encouraging Vietnamese-American Women to Obtain Pap Tests Through Lay Health Worker Outreach and Media Education

Tram Lam; Stephen J. McPhee; Jeremiah Mock; Ching Wong; Hiep T. Doan; Thoa Nguyen; Ky Q. Lai; Tuyet Ha-Iaconis; Thien-Nhien Luong

AbstractBACKGROUND: Five times more Vietnamese-American women develop cervical cancer than white women. Few studies have examined whether community-based participatory research can effectively address Asian immigrants’ health problems. This article reports the preliminary evaluation of 1 such project. METHODS: A coalition of 11 organizations in Santa Clara County, California worked with university researchers to design and simultaneously implement a media education (ME) campaign and a lay health worker outreach (LHWO) program to increase Vietnamese-American women’s cervical cancer awareness, knowledge, and screening. Two agencies each recruited 10 lay health workers (LHWs), who, in turn, each recruited 20 women who were then randomized into 2 groups: 10 to LHWO+ME (n=200) and 10 to ME alone (n=200). LHWs organized meetings with women to increase their knowledge and to motivate them to obtain Pap tests. Participants completed pre- and post-intervention questionnaires. RESULTS: At post-intervention, significantly more LHWO+ME women understood that human papillomavirus and smoking cause cervical cancer. The number of women who had obtained a Pap test increased significantly among women in both LHWO+ME and ME groups, but substantially more in the LHWO+ME group. Significantly more LHWO+ME women said they intended to have a Pap test. CONCLUSIONS: Media education campaigns can increase Vietnamese women’s awareness of the importance of Pap tests, but lay health workers are more effective at encouraging women to actually obtain the tests. Lay health workers are effective because they use their cultural knowledge and social networks to create change. Researchers, community members, and community-based organizations can share expert knowledge and skills, and build one another’s capacities.


American Journal of Public Health | 2007

Effective lay health worker outreach and media-based education for promoting cervical cancer screening among vietnamese american women

Jeremiah Mock; Stephen J. McPhee; Thoa Nguyen; Ching Wong; Hiep T. Doan; Ky Q. Lai; Kim Son H Nguyen; Tung T. Nguyen; Ngoc Bui-Tong

OBJECTIVES We sought to promote cervical cancer screening among Vietnamese American women in Santa Clara County, Calif. METHODS In 2001-2004, we recruited and randomized 1005 Vietnamese American women into 2 groups: lay health worker outreach plus media-based education (combined intervention) or media-based education only. Lay health workers met with the combined intervention group twice over 3 to 4 months to promote Papanicolaou (Pap) testing. We used questionnaires to measure changes in awareness, knowledge, and Pap testing. RESULTS Testing increased among women in both the combined intervention (65.8% to 81.8%; P<.001) and media-only (70.1% to 75.5%; P<.001) groups, but significantly more in the combined intervention group (P=.001). Among women never previously screened, significantly more women in the combined intervention group (46.0%) than in the media-only group (27.1%) obtained tests (P<.001). Significantly more women in the combined intervention group obtained their first Pap test or obtained one after an interval of more than 1 year (became up-to-date; 45.7% to 67.3%, respectively; P<.001) than did those in the media-only group (50.9% to 55.7%, respectively; P=.035). CONCLUSIONS Combined intervention motivated more Vietnamese American women to obtain their first Pap tests and to become up-to-date than did media education alone.


Journal of Health Care for the Poor and Underserved | 2006

Community-Based Participatory Research Increases Cervical Cancer Screening among Vietnamese-Americans

Tung T. Nguyen; Stephen J. McPhee; Ngoc Bui-Tong; Thien-Nhien Luong; Tuyet Ha-Iaconis; Thoa Nguyen; Ching Wong; Ky Q. Lai; Hy Lam

Using community-based participatory research methods, a community-research coalition in Santa Clara County, California (SCC) conducted a quasi-experimental, controlled trial to increase Pap test receipt and to build community capacity among Vietnamese-American women. From 1999 to 2004, the Coalition planned and implemented an Action Plan with six components: multimedia campaign, lay health worker outreach, Vietnamese Pap clinic with patient navigation, registry and reminder system, continuing medical education for Vietnamese physicians, and restoring a Breast and Cervical Cancer Control Program site. Components were evaluated individually. Community-wide, cross-sectional telephone surveys of Vietnamese women in SCC (intervention community) and Harris County, Texas (comparison community) measured overall project impact. Receipt and currency of Pap tests increased significantly in the intervention compared with the comparison community. Community involvement, system changes, community and research capacity building, dissemination of results, and program sustainability were also demonstrated. Community-based participatory research is feasible and effective in Vietnamese-American communities.


American Journal of Preventive Medicine | 2009

Breast Cancer Screening Among Vietnamese Americans. A Randomized Controlled Trial of Lay Health Worker Outreach

Tung T. Nguyen; Gem M. Le; Thoa Nguyen; Khanh Le; Ky Q. Lai; Ginny Gildengorin; Janice Y. Tsoh; Ngoc Bui-Tong; Stephen J. McPhee

BACKGROUND Vietnamese-American women underutilize breast cancer screening. DESIGN An RCT was conducted comparing the effect of lay health workers (LHWs) and media education (ME) to ME alone on breast cancer screening among these women. SETTING/PARTICIPANTS Conducted in California from 2004 to 2007, the study included 1100 Vietnamese-American women aged > or = 40 years who were recruited through LHW social networks. Data were analyzed from 2007 to 2009. INTERVENTION Both groups received targeted ME. The intervention group received two LHW educational sessions and two telephone calls. MAIN OUTCOME MEASURES Change in self-reported receipt of mammography ever, mammography within 2 years, clinical breast examination (CBE) ever, or CBE within 2 years. RESULTS The LHW+ME group increased receipt of mammography ever and mammography in the past 2 years (84.1% to 91.6% and 64.7% to 82.1%, p<0.001) while the ME group did not. Both ME (73.1% to 79.0%, p<0.001) and LHW+ME (68.1% to 85.5%, p<0.001) groups increased receipt of CBE ever, but the LHW+ME group had a significantly greater increase. The results were similar for CBE within 2 years. In multivariate analyses, LHW+ME was significantly more effective than ME for all four outcomes, with ORs of 3.62 (95% CI=1.35, 9.76) for mammography ever; 3.14 (95% CI=1.98, 5.01) for mammography within 2 years; 2.94 (95% CI=1.63, 5.30) for CBE ever; and 3.04 (95% CI=2.11, 4.37) for CBE within 2 years. CONCLUSIONS Lay health workers increased breast cancer screening among Vietnamese-American women.Future research should focus on how LHWs work and whether LHW outreach can be disseminated to other ethnic groups [corrected].


Health Promotion Practice | 2006

Processes and Capacity-Building Benefits of Lay Health Worker Outreach Focused on Preventing Cervical Cancer Among Vietnamese

Jeremiah Mock; Thoa Nguyen; Kim Son H Nguyen; Ngoc Bui-Tong; Stephen J. McPhee

The authors organized a lay health worker (LHW) outreach program with Vietnamese women that produced significant increases in Pap testing. The program was conducted by five partner agencies and 50 LHWs and involved 1,005 women. This article reports on the roles of the agencies and coordinators, the selection of LHWs, the processes LHWs used in identifying and recruiting participants, the ways they conducted their outreach work, and their strategies for maintaining participation. The article also reports on the LHWs’ perspectives about how they benefited and what they found to be most rewarding and challenging about being a LHW. Based on the analysis of this information, the authors present a conceptual framework for understanding how different contextual factors shape the processes and capacity-building benefits of LHW outreach, describing four contextual domains that shape LHW outreach: the sociocultural domain and organizational domain, which overlap in the programmatic domain, all of which are framed by the structural domain. This analysis provides an approach for understanding how lay health work is shaped by a broader context.


Cancer | 2001

Promoting early detection of breast cancer among Vietnamese-American women

Thoa Nguyen; Phuong Vo; Stephen J. McPhee; Christopher N. H. Jenkins

Although breast cancer is the second most common cancer among Vietnamese‐American women, previous research has shown that they are less likely to have ever had, and to be more often overdue for, clinical breast examinations (CBE) and mammograms than women in the general population.


Cancer | 2005

Highlights/best practices of San Francisco's Asian American Network for Cancer Awareness, Research, and Training (AANCART).

Stephen J. McPhee; Tung T. Nguyen; Jeremiah Mock; Thoa Nguyen; Hy Lam

The Asian American Network for Cancer Awareness, Research, and Training in San Francisco (AANCART‐SF) consists of two distinct entities, working in cooperation to advance cancer awareness, research, and training among Asian Americans: a university‐based group with expertise in the Vietnamese community and a community‐based health plan with expertise in the Chinese community. In addition to the goals shared with other AANCART sites, AANCART‐SF is a unique effort in capacity building in that it aims to expand and export community‐academic research expertise from one Asian population, the Vietnamese, to other Asian populations. It also aims to build the research capability of those serving the Chinese community through a health plan. Cancer 2005.


International Archives of Occupational and Environmental Health | 2018

Improving the knowledge and behavior of workplace chemical exposures in Vietnamese–American nail salon workers: a randomized controlled trial

Thu Quach; J. Von Behren; Janice Y. Tsoh; P. Reynolds; Lisa Fu; Tung T. Nguyen; M. Le; Thoa Nguyen

ObjectivesWe assessed the efficacy of trainings with Vietnamese nail salon owners and workers on knowledge and behaviors that could reduce exposures to toxic chemicals in nail products.MethodsWe trained Vietnamese salon owners in California (n = 77) who then trained their workers (n = 200) on best practices. In a cluster randomized controlled trial, we assessed the efficacy of the training on change in knowledge and self-reported behaviors. Data were collected from 2013 to 2016 and analyzed from 2016 to 2017.ResultsCompared to the control group, the intervention group had significantly greater increases in knowledge about: safer nail polishes [odds ratio (OR) 3.7 (95% confidence interval (CI) 1.9, 7.2)]; proper ventilation methods (OR 4.2; 95% CI 2.2, 8.1); recommended glove types (OR 3.4; 95% CI 1.9, 6.3); and recommended product handling and storage (OR 4.1; 95% CI 1.7, 9.9). The intervention also increased best practices: using safer nail polishes (OR 3.6; 95% CI 1.9, 6.8); reading product labels (OR 2.6; 95% CI 1.3, 5.0); and wearing long sleeves (OR 2.4; 95% CI 1.3, 4.2).ConclusionsThe owner-to-worker intervention with culturally and linguistically appropriate training for salon owners who then trained workers was effective in promoting knowledge and self-reported behaviors that can reduce workplace chemical exposures.


Preventive Medicine | 1999

Effect of a Media-Led Education Campaign on Breast and Cervical Cancer Screening among Vietnamese-American Women

Christopher N. H. Jenkins; Stephen J. McPhee; Joyce Adair Bird; Giao Qui Pham; Bang H. Nguyen; Thoa Nguyen; Ky Q. Lai; Ching Wong; Thomas Davis

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Ching Wong

University of California

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Tung T. Nguyen

University of California

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Jeremiah Mock

University of California

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Ky Q. Lai

University of California

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Hy Lam

University of California

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Tram Lam

University of California

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