| Theme |
Current Status and Future Perspectives of Endoscopic Screening |
| Title |
Effectiveness and Safety of a Colorectal Cancer Screening Program Using Colonoscopy Based on the Results of the Nii—jima Study |
| Author |
Kinichi Hotta |
Division of Endoscopy, Shizuoka Cancer Center |
| Author |
Takahisa Matsuda |
Cancer Screening Center, National Cancer Center Hospital / Endoscopy Division, National Cancer Center Hospital |
| Author |
Yasuo Kakugawa |
Cancer Screening Center, National Cancer Center Hospital / Endoscopy Division, National Cancer Center Hospital |
| Author |
Hiroaki Ikematsu |
Endoscopy Division, National Cancer Center Hospital East |
| Author |
Nozomu Kobayashi |
Department of Digestive Disease, Tochigi Cancer Center |
| Author |
Yutaka Saito |
Endoscopy Division, National Cancer Center Hospital |
| [ Summary ] |
The Nii‒jima study aimed to evaluate the participation rate, safety, and efficacy of a colorectal cancer screening program using colonoscopy on the island. Educational campaigns were actively conducted every month using information bulletins and special propaganda pamphlets. The primary recommended modality was colonoscopy, followed by fecal immunochemical test. The participants of this program were 1,671 individuals aged 40‒79 years. A total of 789 (47.2 %) individuals provided consent for this screening program, and 89 % of participants chose colonoscopy as the primary screening procedure. Detection rates of invasive cancer, intramucosal cancer, advanced neoplasia, and any adenoma were 0.9 %, 2.4 %, 11.8 %, and 50.0 %, respectively. The colorectal cancer screening program using colonoscopy that was conducted on the island achieved a considerably higher participation rate than the conventional screening program using the fecal immunochemical test. The completion rate and safety of the screening colonoscopy observed in this program were excellent. |