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Gastrointest Endosc. 2013 Mar;77(3):447-54. doi: 10.1016/j.gie.2012.11.027. Epub 2013 Jan 18.

Short- and long-term risk of colorectal adenoma recurrence among whites and blacks.

Author information

1
Department of Medicine, Howard University Hospital, Washington, DC, USA. adeyinka.laiyemo@howard.edu.

Abstract

BACKGROUND:

It is unclear whether the higher burden from colorectal cancer among blacks is due to an increased biological susceptibility.

OBJECTIVE:

To determine whether non-Hispanic blacks (blacks) have a higher risk of adenoma recurrence than non-Hispanic whites (whites) after removal of colorectal adenoma.

DESIGN:

Secondary analysis of the Polyp Prevention Trial (PPT) data.

SETTING:

United States.

PATIENTS:

Patients were 1668 self-identified whites and 153 blacks who completed the 4-year trial. Of these, 688 whites and 55 blacks enrolled in a posttrial, passive Polyp Prevention Trial Continued Follow-up Study (PPT-CFS) and underwent another colonoscopy.

MAIN OUTCOME MEASUREMENTS:

Recurrence and location of the adenoma and advanced adenoma by race-ethnicity during PPT and cumulative recurrence over a mean follow-up of 8.3 years (range, 4.9-12.4 years) among PPT-CFS enrollees.

RESULTS:

Blacks had similar risk of recurrence of adenoma (39.2% vs 39.4%; incidence risk ratio [RR] = .98; 95% CI, .80-1.20) and advanced adenoma (8.5% vs 6.4%; RR = 1.18; 95% CI, .68-2.05) as whites at the end of PPT. Recurrence risk did not differ by colon subsite. Among PPT-CFS enrollees, the cumulative recurrence rate over a maximal follow-up period of 12 years was similar for blacks and whites for adenoma (67.3% vs 67.0%; RR = 1.01; 95% CI, .84-1.21) and advanced adenoma (14.5% vs 16.9%; RR = 1.03; 95% CI, .60-1.79).

LIMITATION:

There were few blacks in the long-term follow-up study.

CONCLUSIONS:

Adenoma and advanced adenoma recurrence did not differ by race. Our study does not support more frequent surveillance colonoscopies for blacks with a personal history of adenoma as an intervention to reduce colorectal cancer disparity.

PMID:
23337636
PMCID:
PMC3651852
DOI:
10.1016/j.gie.2012.11.027
[Indexed for MEDLINE]
Free PMC Article
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