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Lay Health Workers and Colorectal Cancer Screening Among Chinese Americans

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ClinicalTrials.gov Identifier: NCT00947206
Recruitment Status : Completed
First Posted : July 28, 2009
Last Update Posted : May 8, 2014
Sponsor:
Collaborators:
San Francisco State University
NICOS Chinese Health Coalition
Information provided by (Responsible Party):
University of California, San Francisco

July 24, 2009
July 28, 2009
May 8, 2014
September 2009
May 2014   (Final data collection date for primary outcome measure)
ever had a CRC screening test [ Time Frame: 6 months ]
Same as current
Complete list of historical versions of study NCT00947206 on ClinicalTrials.gov Archive Site
up-to-date for CRC screening [ Time Frame: 6 months ]
Same as current
Not Provided
Not Provided
 
Lay Health Workers and Colorectal Cancer Screening Among Chinese Americans
Lay Health Workers and Colorectal Cancer Screening Among Chinese Americans

This proposed project seeks to expand understanding of what constitutes a "lay health worker (LHW)," how those characteristics determine the effectiveness of LHWs as health educators on colorectal cancer (CRC) screening, and the relationship of those characteristics to a particular community and culture. Using quantitative and qualitative methods and a community-based participatory research (CBPR) approach, the project will develop and implement a group randomized controlled trial to evaluate LHW effectiveness in promoting CRC screening among Chinese Americans age 50 to 75 with a pilot component to evaluate the role of Traditional Chinese Medicine (TCM) healers as health educators.

The investigators will conduct focus groups with community participants to revise training materials developed in a prior pilot project. The investigators will also conduct ethnographic observations of TCM healers and focus groups with their clients to refine the training materials. The investigators will recruit 26 LHWs to be assigned to the intervention arm and 26 to the comparison arm. The LHWs will each recruit 12 participants from their social network for a total of 312 participants in each arm. The intervention group participants will be exposed to 2 LHWO sessions and 2 telephone calls aimed at increasing their CRC screening receipt. The comparison group will receive a bilingual CRC brochure as well as a lecture on healthy nutrition for cardiovascular health and a post-intervention LHWO session on CRC screening. Effectiveness of the intervention will be measured by pre-intervention and post-intervention surveys of community participants' CRC screening behaviors, with validation of self-reports. An additional 10 TCM healers will also participate as LHWs. They will each recruit 12 participants for LHWO. There will be extensive ethnographic observations as well as post-intervention focus groups of LHWO activities, LHWs, and LHWO participants to assess the factors that contribute to effective LHWO.

The primary hypothesis is that the increase in the proportion of participants who report ever having had a CRC screening test in the experimental group (LHWO about CRC) will be greater than the increase in the comparison group (nutrition education + CRC brochure).

The secondary hypotheses are:

  1. The increase in the proportion of participants who are up-to-date for CRC screening in the experimental group will be greater than the increase in the comparison group;
  2. The increase in the proportion of participants who intend to obtain CRC screening in the next 6 months in the experimental group will be greater than the increase in the comparison group;
  3. The increase in the proportion of participants who are aware of CRC screening tests in the experimental group will be greater than the increase in the comparison group;
  4. Self-efficacy is a mediator between intervention and receipt of CRC screening.
  5. Knowledge is a mediator between intervention and receipt of CRC screening.
  6. Gender is a moderator between intervention and receipt of CRC screening.

Although the pilot project intervention was effective in both men and women, the sample was too small to determine if there was a gender effect. Based on the extensive literature on LHWO among women, the intervention may be more effective among women than men.

Additional secondary hypotheses will apply the primary hypothesis and secondary hypotheses 1-3 to individual CRC tests (FOBT, sigmoidoscopy, or colonoscopy) rather than to the combined outcome.

Interventional
Not Applicable
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Prevention
Colorectal Neoplasms
  • Behavioral: LHWO about CRC
    2 LHWO sessions and 2 telephone calls aimed at increasing their CRC screening receipt
  • Behavioral: Nutrition Education + CRC brochure
    Bilingual CRC brochure as well as a lecture on healthy nutrition for cardiovascular health and a post-intervention LHWO session on CRC screening.
  • Experimental: LHWO about CRC
    The intervention group participants will be exposed to 2 LHWO sessions and 2 telephone calls aimed at increasing their CRC screening receipt.
    Intervention: Behavioral: LHWO about CRC
  • Active Comparator: Nutrition education + CRC brochure
    The comparison group will receive a bilingual CRC brochure as well as a lecture on healthy nutrition for cardiovascular health and a post-intervention LHWO session on CRC screening.
    Intervention: Behavioral: Nutrition Education + CRC brochure

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
909
784
May 2014
May 2014   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • self-identified as Chinese or Chinese Americans
  • age 50 to 75
  • speak a language that the LHW can speak (Cantonese, Mandarin, and/or English)
  • live and intend to stay in SF for at least 12 months
  • have no personal history of CRC
  • have no medical problems preventing them from attending educational sessions
  • willing to participate in a study about health behaviors involving nutrition or CRC screening

Exclusion Criteria:

  • anyone who does not meet the above criteria
  • those unable to understand informed consent form written in their language
  • those too debilitated to attend educational sessions
Sexes Eligible for Study: All
50 Years to 75 Years   (Adult, Older Adult)
Yes
Contact information is only displayed when the study is recruiting subjects
United States
 
 
NCT00947206
1R01CA138778-01A1( U.S. NIH Grant/Contract )
No
Not Provided
Not Provided
University of California, San Francisco
University of California, San Francisco
  • San Francisco State University
  • NICOS Chinese Health Coalition
Principal Investigator: Tung T Nguyen, MD University of California, San Francisco
University of California, San Francisco
May 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP