Prevalence of patients with colorectal cancer requiring follow-up or active treatment.
BACKGROUND
The objective of this study was to estimate prevalence of colorectal cancers requiring care or follow-up.


METHODS
Prevalence was observed in 2005 on the population-based digestive cancer registry of Burgundy (France). Total and 5-year partial prevalences were calculated. The prevalence of patients requiring follow-up was estimated using non-mixture cure models. The prevalence of patients with recurrence was estimated using annual recurrence rates.


RESULTS
Total prevalence was 262,244 cases in France. The mean variation in 5-year partial prevalence between successive 5-year periods was +8.0%. Time to cure was estimated to be 9.3 years, suggesting that follow-up is needed over a 10-year period, corresponding to 71.7% of prevalent cases. In 2005, 5.4% of prevalent cases had recurrent cancer requiring treatment.


CONCLUSIONS
This study underlines the burden of colorectal cancer on the health system. Prevalence of patients requiring follow-up or treatment provides interesting information in addition to classic indicators.
Chauvenet
Marion
M
Registre Bourguignon des Cancers Digestifs, Inserm U866, Université de Bourgogne, CHU Dijon, Dijon F-21079, France.
Lepage
Côme
C
Jooste
Valérie
V
Cottet
Vanessa
V
Faivre
Jean
J
Bouvier
Anne-Marie
AM
D000328:Adult; D000368:Aged; D015179:Colorectal Neoplasms / Q000453:epidemiology* / Q000401:mortality / Q000628:therapy; D005260:Female; D005602:France / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000453:epidemiology / Q000401:mortality / Q000628:therapy; D015995:Prevalence; D012042:Registries; D015996:Survival Rate