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Randomized Controlled Trial
. 2014 Jun 1;120(11):1702-12.
doi: 10.1002/cncr.28640. Epub 2014 Mar 4.

Improving colorectal cancer screening in Asian Americans: Results of a randomized intervention study

Patricia A Carney  1 , Frances Lee-Lin, Solange Mongoue-Tchokote, Motomi Mori, Holden Leung, Christine Lau, T Domi Le, David A Lieberman
Affiliations
Randomized Controlled Trial

Improving colorectal cancer screening in Asian Americans: Results of a randomized intervention study

Patricia A Carney et al. Cancer. .

Abstract

Background: The objective of this study was to use a randomized controlled trial design to test the impact of an educational intervention delivered by specially trained community health workers among Chinese, Korean, and Vietnamese participants ages 50 to 75 years on knowledge, attitudes, beliefs, and intentions regarding colorectal cancer screening.

Methods: Baseline data were collected on participants' demographic characteristics, knowledge, attitudes, beliefs about cancer, its risk factors, and intention to keep up to date on cancer screening in the future. Fifteen intervention sessions were held between April and June of 2011. Follow-up surveys were administered in the postintervention period to both intervention and control participants. Those randomized to the control group received educational pamphlets in their native language.

Results: The intervention had the greatest influence on the Chinese subgroup, which had improved scores relative to the control group for perceived behavior control and intentions (preintervention vs postintervention change: control group, -0.16; intervention group, 0.11; P = .004), behavioral beliefs on cancer screening (preintervention vs postintervention change: control group, -0.06; intervention group, 0.24; P = .0001), and attitudes toward behavior (preintervention vs postintervention change: control group, -0.24; intervention group, 0.35; P ≤ .0001). The intervention had no effect on behavioral beliefs about cancer, control beliefs, or perceived behavioral control (reliance on family). Although the intention to stay up to date for cancer screening increased in 2 study groups (Chinese and Vietnamese), these increases were not significant.

Conclusions: An educational program delivered by culturally specific community health educators using culturally appropriate language influences some knowledge, attitude, and behavioral beliefs but not others.

Keywords: cancer and culture; cancer education; cancer screening; colorectal cancer; health disparities.

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Conflict of interest statement

The authors have no financial or other conflicts of interest to declare related to this work.

Figures

Figure 1
Figure 1. Differences in Least Square Means of each Domain According to Study Group and Asian Subgroup
This interaction plot displays the least square means of the domain scores at baseline and post-intervention according to both study group assignment and Asian subgroup. The p values reflect whether pre- vs. post-intervention change was significantly different between two study groups. ––––– Intervention group ------ Control group
Figure 2
Figure 2. Intention to Stay Up to Date for Cancer Screening According to Study Group and Asian Subgroup
This plot shows the impact the intervention has on intention to stay up to date for cancer screening. The p values reflect whether pre- vs. post-intervention change was significantly different between two study groups. ––––– Intervention group ------ Control group
See this image and copyright information in PMC

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