Brown, M.L.

cancer screening colorectal model saving treatment colorectal cancer mortality adenomas factor productivity study stage estimate health strategy result colorectal cancer screening risk factors cancer institute population sigmoidoscopy program incidence prevention 2005 levels surveillance death risk factor reduction chemotherapy expert level assumption adjuvant colonoscopy institute productivity loss colon adenoma expert model table crc incidence treatment costs crc prevention screening program endoscopic value reduction person lesion screening rates bradley duration morbidity polypectomy van oortmarssen gj patient fluorouracil group blood women trial cost savings occult report control distribution intervention simulation increase adjuvant chemotherapy use sigmoidoscopy screening morbidity mortality productivity losses health interview survey van ballegooijen m crc patients nonprogressive adenomas number benef