Filipino-American Health Study

Program Title Filipino-American Health Study
Purpose Designed to increase colorectal cancer screening among Filipino Americans. (2010)
Program Focus Awareness building
Population Focus Un- and/or Underscreened Individuals
Topic Colorectal Cancer Screening
Age Adults (40-65 years), Older Adults (65+ years)
Gender Female, Male
Race/Ethnicity Asian
Setting Community, Religious establishments, Urban/Inner City
Origination United States
Funded by American Cancer Society (Grant number(s): RSGT-04-210-01-CPPB), NCI (Grant number(s): P30CA16042)
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The Need
Colorectal cancer is the third most common type of cancer and the second leading cause of cancer death in the United States.  The incidence and mortality rates associated with this type of cancer are disproportionately high in certain minority populations.  To reduce colorectal cancer mortality rates in adults aged 50-75 at average risk for the disease, the United States Preventive Services Task Force recommends three screening technologies: annual high-sensitivity fecal occult blood testing (FOBT), sigmoidoscopy every 5 years with FOBT between exams, and optical colonoscopy every 10 years. 
The Program

The Filipino-American Health Study is a multicomponent, colorectal cancer (CRC) screening intervention consisting of a small-group educational session delivered by trained Filipino-American health educators (nurses).  The intervention makes use of take-home print materials, a free fecal occult blood test (FOBT) kit, a follow-up reminder letter to the participant, and a letter to each participant's medical provider.  The educational session follows a written curriculum designed to deliver specific information and recommendations for CRC screening to small groups of 6-10 Filipino-American participants at community-based organizations and churches. During the educational session, the health educator facilitates discussion of (1) the incidence and mortality of CRC among Filipino-American men and women, (2) risk factors and symptoms, (3) benefits of prevention and early detection, (4) recommended screening tests (FOBT, sigmoidoscopy, and colonoscopy), (5) where to obtain screening tests, and (6) myths versus facts about CRC and screening.

At the end of the educational session, the health educator makes a strong recommendation to obtain an FOBT annually and encourages participants to discuss the need for CRC screening with their physicians.  Participants sign a personalized pledge to obtain a stool blood test and FOBT kits are passed out.  Participants receive take-home print materials summarizing the CRC screening information and a copy of the American Cancer Society brochure Colon Testing Can Save Your Life in English and Tagalog.

Three months after the educational session, all participants receive a personalized letter reminding them to obtain an FOBT yearly, and their physicians are notified by mail about their participation in the Filipino-American Health Study and that they might be submitting a completed FOBT kit or requesting CRC screening. 

Community Preventive Services Task Force Finding
Guide to Community Preventive Services This program uses intervention approaches recommended by the Community Preventive Services Task Force: small media interventions (Colorectal Cancer Screening), client reminder interventions (Colorectal Cancer Screening) and multicomponent interventions (Colorectal Cancer Screening). This program also uses the following intervention approach for which the Community Preventive Services Task Force finds insufficient evidence: group education interventions (Colorectal Cancer Screening). Insufficient evidence means the available studies do not provide sufficient evidence to determine if the intervention is or is not effective. This does not mean that the intervention does not work. It means that additional research is needed to determine whether the intervention is effective.

Time Required

- Delivery of a 60-90-minute educational session
- Follow-up mailing of two letters, one letter to the participant and one letter to the participant's physician

Although nurse health educators completed a 4-6-hour training session specifically for the research study, little training beyond the intervention manual is required for program implementation according to the principal investigator who is available by phone to potential implementers.

Intended Audience
The intervention targets Filipino-Americans aged 50-70 years who are not screened for CRC according to the guidelines. 
Suitable Settings
The intervention is suitable for implementation in community-based organizations and churches serving the Filipino-American population.
Required Resources

The following materials are required:

- Instructor materials
- Participant materials

About the Study

A randomized clinical study evaluated the effects of a community-based intervention to increase colorectal cancer (CRC) screening in Filipino-Americans aged 50-70 years who were nonadherent to CRC screening guidelines, defined as no FOBT in the prior 12 months, no sigmoidoscopy in the prior 5 years, and no colonoscopy in the prior 10 years.  Liaisons with 45 Filipino-American, community-based organizations and churches provided a list of people aged 50-70 years with no history of CRC (recruitment, Phase I) and who were nonadherent to CRC screening guidelines (i.e., no FOBT screening within the prior 12 months, no sigmoidoscopy in the prior 5 years, and no colonoscopy in the prior 10 years, recruitment Phase II).
Baseline interviews to confirm nonadherence to CRC screening guidelines were conducted primarily by telephone (70%) and in English (60%).  Of the 906 Filipino-Americans who completed baseline interviews, 548 were nonadherent to CRC screening guidelines (due for screening) and randomized to one of three conditions: the intervention with a free FOBT kit, the same intervention without the FOBT kit, and a control condition consisting of a physical activity education session only. 

The average age of study participants was 59; two thirds were female, married, had a college education, and had an average annual income of less than $50,000.  All study participants were foreign-born and had lived in the United States for an average of 18 years. Sixty-percent of the participants considered themselves more Filipino than American, with 36% considering themselves to be equally Filipino and American; 19% spoke primarily Tagalog with friends.  Although most had health insurance (70%) and a regular doctor (79%), only 25% had ever received any prior CRC screening.  Other than the study participants in the control condition being more likely to complete the baseline interview in English (69%) as compared with participants in either of the two intervention conditions, there were no significant differences among conditions at baseline. 

All randomized participants were assessed for receipt of any CRC screening (defined as FOBT, sigmoidoscopy, or colonoscopy) at 6 months after the small-group educational session (whether intervention or control conditions) by follow-up telephone interview (98%) in English (86%) primarily.  Up to nine telephone callbacks (on different days and times) were attempted to reach each participant for follow-up.  Ninety-three-percent of the participants attended the educational session across the three conditions.  Follow-up interviews were completed with 79% of study participants within an average of 6 to 8.2 months following the educational session.  A comparison of study completers (432 participants) and noncompleters (116 participants) indicated that completers were more likely to have completed the baseline interview in English, be college educated, have an annual income of $50,000 or more, and report a doctor's recommendation to obtain FOBT or an endoscopy at baseline. 

Key Findings

Graph of Study Results

  • A higher percentage of participants assigned to the Filipino-American Health Study intervention with a free FOBT kit reported any CRC screening during the 6-month follow-up period as compared to the control condition (30% vs. 9%, p<.001).  Similarly, a higher percentage of participants assigned to the Filipino-American Health Study intervention without a free FOBT kit reported any CRC screening during the 6-month follow-up period as compared to the control condition (25% vs. 9%, p<.001).  The study was not powered to detect statistical differences between the two intervention conditions (with free FOBT versus without free FOBT).
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Updated: 08/23/2017