Prospective evaluation of screening colonoscopy: who is being screened?

Folic Acid Prevents the Initial Occurrence of Sporadic Colorectal Adenoma in Chinese Older than 50 Years of Age: A Randomized Clinical Trial

“…We believe there may several reasons. First, previous studies have shown that the incidence of CRA is high in elderly people (7,8,13,40), and the incidence of neoplastic lesions can reach 37.5% in asymptomatic patients (8). It is worth noting that, after the follow-up period, the incidence of CRA can reach 16% to 26% in patients with no adenomas on baseline screening, especially in those with hyperplastic polyps (41)(42)(43).…”

Regional differences in colorectal cancer incidence, stage, and subsite among American Indians and Alaska Natives, 1999-2004

“…44 For AI/ ANs, this tends to select those with more income, higher levels of education, and less traditional ways of life, all of which have been associated with higher rates of screening participation. 8,45,46 In addition, cultural factors, including a reluctance to trust outsiders, modesty, and hesitancy to discuss one's health, may bias BRFSS prevalence estimates further for AI/ANs.…”

Screening for Colorectal Cancer in Average-Risk Chinese Population Using a Mixed Strategy with Sigmoidoscopy and Colonoscopy

“…4,25 It has been reported that persons of lower socioeconomic status were less likely to undergo screening colonoscopy, probably because of the higher cost. 26 In Taiwan, asymptomatic average-risk persons have to pay U.S. $35, $75, and $80 for screening sigmoidoscopy, colonoscopy, and intravenous sedation, respectively. Therefore, we considered that for average-risk Chinese persons who are concerned about the risk and cost from colonoscopy, such mixed screening strategy could act as a cost-effective alternative to universal colonoscopy.…”