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

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

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

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 ≥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: Increased breast cancer screening by LHWs among Vietnamese-American women. Future research should focus on how LHWs work and whether LHW outreach can be disseminated to other ethnic groups.

Original languageEnglish (US)
Pages (from-to)306-313
Number of pages8
JournalAmerican Journal of Preventive Medicine
Volume37
Issue number4
DOIs
StatePublished - Oct 2009

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Asian Americans
Early Detection of Cancer
Randomized Controlled Trials
Breast Neoplasms
Education
Mammography
Health
Breast
Ethnic Groups
Telephone
Social Support
Multivariate Analysis
Outcome Assessment (Health Care)

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Epidemiology

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Breast Cancer Screening Among Vietnamese Americans. A Randomized Controlled Trial of Lay Health Worker Outreach. / Nguyen, Tung T.; Le, Gem; Nguyen, Thoa; Le, Khanh; Lai, Ky; Gildengorin, Ginny; Tsoh, Janice; Bui-Tong, Ngoc; McPhee, Stephen J.

In: American Journal of Preventive Medicine, Vol. 37, No. 4, 10.2009, p. 306-313.

Research output: Contribution to journalArticle

Nguyen, TT, Le, G, Nguyen, T, Le, K, Lai, K, Gildengorin, G, Tsoh, J, Bui-Tong, N & McPhee, SJ 2009, 'Breast Cancer Screening Among Vietnamese Americans. A Randomized Controlled Trial of Lay Health Worker Outreach', American Journal of Preventive Medicine, vol. 37, no. 4, pp. 306-313. https://doi.org/10.1016/j.amepre.2009.06.009
Nguyen, Tung T. ; Le, Gem ; Nguyen, Thoa ; Le, Khanh ; Lai, Ky ; Gildengorin, Ginny ; Tsoh, Janice ; Bui-Tong, Ngoc ; McPhee, Stephen J. / Breast Cancer Screening Among Vietnamese Americans. A Randomized Controlled Trial of Lay Health Worker Outreach. In: American Journal of Preventive Medicine. 2009 ; Vol. 37, No. 4. pp. 306-313.
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abstract = "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 ≥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: Increased breast cancer screening by LHWs among Vietnamese-American women. Future research should focus on how LHWs work and whether LHW outreach can be disseminated to other ethnic groups.",
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AU - Le, Gem

AU - Nguyen, Thoa

AU - Le, Khanh

AU - Lai, Ky

AU - Gildengorin, Ginny

AU - Tsoh, Janice

AU - Bui-Tong, Ngoc

AU - McPhee, Stephen J.

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N2 - 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 ≥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: Increased breast cancer screening by LHWs among Vietnamese-American women. Future research should focus on how LHWs work and whether LHW outreach can be disseminated to other ethnic groups.

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