Theory-based chatbot for promoting colorectal cancer screening in a community setting in Hong Kong: study protocol of a randomised controlled trial.

Journal: BMJ open
Published Date: Jul 10, 2025

Abstract

BACKGROUND: Colorectal cancer (CRC) is the third most common cancer and the second leading cause of cancer mortality worldwide. Despite the organised CRC screening programme, the uptake rate of the population-based CRC screening was still low. Thus, we will conduct a randomised controlled trial in a community setting to evaluate the effectiveness of a theory-based chatbot in promoting CRC screening uptake.

Authors

  • Yue Hu
    Department of Biobank, China-Japan Union Hospital of Jilin University, Changchun, China.
  • Wai Man Lau
    Institute of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
  • Zixin Johnson Wang
    Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
  • Raymond Shing Yan Tang
    Institute of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
  • Xixin Wu
    Stanley Ho Big Data Decision Analytics Research Centre, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
  • Phoenix Kit Han Mo
    Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
  • Samuel Yeung Shan Wong
    Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
  • Mei Ling Helen Meng
    Department of Systems Engineering and Engineering Management, The Chinese University of Hong Kong, Hong Kong, China.
  • Dong Dong
    Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
  • Joseph Jao You Sung
    Institute of Digestive Diseases, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
  • Thomas Yuen Tung Lam
    The Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong SAR, China.

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