Colorectal cancer screening by fecal immunochemical test or colonoscopy in France: how many people are actually covered? Focus on the Provence-Alpes-Côte d'Azur region.

BACKGROUND: Colorectal cancer (CRC) screening with fecal immunochemical test (FIT) remains low in France, particularly in the Provence-Alpes-Côte-d'Azur (PACA) region. The aim of this study was to compare insured persons (50-74 years) who had FIT and/or colonoscopy in PACA with the general French population.METHODS: FIT and colonoscopy rates were calculated according to SP-France and National Health Data System data.RESULTS: The rate of FIT in 2016-2017 was lower in PACA than in France (25.6 vs. 29.1%, P < 0.001). Conversely, in 2013-2017, the rate of colonoscopy in the past 5 years was higher in PACA than in France (23.1 vs. 20.1%, P < 0.001). Total rate for FIT within 2 years and/or colonoscopy within 5 years was 46.0% in PACA vs. 46.5% in France (P < 0.001). Overuse was higher for diagnostic (1.21) than therapeutic colonoscopies (1.05). Therapeutic colonoscopy occurred more with FIT than without (47.88 vs. 38.7%, P < 0.001). According to USA criteria, persons with FIT within 2 years and/or sigmoidoscopy and/or colonoscopy within 10 years was 59.4% in PACA vs. 54.7% in France (P < 0.001).CONCLUSION: Low participation in FIT in France must be improved to increase the rate of therapeutic colonoscopies and reduce the incidence of CRC. The higher colonoscopy rate in PACA could explain the lower CRC mortality. Efforts should be focused on the more than 40% of French insured who are not screened by either FIT or colonoscopy.