The DOI matches its Crossref record; 30 of the 30 references it cites were found in a registry or an index.
Risk of Perforation After Colonoscopy and Sigmoidoscopy: A Population-Based Study
Abstract
BACKGROUND: Although the risk of bowel perforation is often cited as a major factor in the choice between colonoscopy and sigmoidoscopy for colorectal screening, good estimates of the absolute and relative risks of perforation are lacking. METHODS: We used a large population-based cohort that consisted of a random sample of 5% of Medicare beneficiaries living in regions of the United States covered by the Surveillance, Epidemiology, and End Results (SEER) Program registries to determine rates of perforation in people aged 65 years and older. We identified individuals who were cancer-free and had undergone colonoscopy or sigmoidoscopy between 1991 and 1998, calculated both the incidence and risk of perforation within 7 days of the procedure, and explored the impact on incidence and risk of perforation of age, race/ethnicity, sex, comorbidities, and indication for the procedure. We also estimated the risk of death after perforation. Risks were calculated with odds ratios (ORs) and 95% confidence intervals (CIs). All statistical tests were two-sided. RESULTS: There were 77 perforations after 39 286 colonoscopies (incidence = 1.96/1000 procedures) and 31 perforations after 35 298 sigmoidoscopies (incidence = 0.88/1000 procedures). After adjustment, the OR for perforation from colonoscopy relative to perforation from sigmoidoscopy was 1.8 (95% CI = 1.2 to 2.8). Risk of perforation from either procedure increased in association with increasing age (P(trend)<.001 for both procedures) and the presence of two or more comorbidities (P(trend)<.001 for colonoscopy and P(trend) =.03 for sigmoidoscopy). Compared with those who were endoscopied and did not have a perforation, the risk of death was statistically significantly increased for those who had a perforation after either colonoscopy (OR = 9.0, 95% CI = 3.0 to 27.3) or sigmoidoscopy (OR = 8.8, 95% CI = 1.6 to 48.5). The risk of perforation after colonoscopy, especially for screening procedures, declined during the 8-year study period. CONCLUSIONS: The risk of perforation after colonoscopy is approximately double that after sigmoidoscopy, but this difference appears to be decreasing. These observations should be useful to clinicians making screening and diagnostic decisions for individual patients and to policy officials setting guidelines for colorectal cancer screening programs.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Charlson, M. E., Pompei, P., Ales, K. L., & MacKenzie, C. R. (1987) · Journal of Chronic Diseases · doi:10.1016/0021-9681(87)90171-8 · Cited by 49,742
Adapting a clinical comorbidity index for use with ICD-9-CM administrative databases
DEYO, R. (1992) · Journal of Clinical Epidemiology · doi:10.1016/0895-4356(92)90133-8 · Cited by 10,452
Reducing Mortality from Colorectal Cancer by Screening for Fecal Occult Blood
Mandel, J. S., Bond, J. H., Church, T. R., Snover, D. C., Bradley, G. M., Schuman, L. M., & Ederer, F. (1993) · New England Journal of Medicine · doi:10.1056/nejm199305133281901 · Cited by 3,229
The American Journal of Gastroenterology
(2003) · The American Journal of Gastroenterology · doi:10.1111/j.1572-0241.2003.80003397.x · Cited by 2,196
Development of a comorbidity index using physician claims data
Klabunde, C. N., Potosky, A. L., Legler, J. M., & Warren, J. L. (2000) · Journal of Clinical Epidemiology · doi:10.1016/s0895-4356(00)00256-0 · Cited by 1,845
Warren, J. L., Klabunde, C. N., Schrag, D., Bach, P. B., & Riley, G. F. (2002) · PubMed · doi:10.1097/01.mlr.0000020942.47004.03 · Cited by 1,714
A Case–Control Study of Screening Sigmoidoscopy and Mortality from Colorectal Cancer
Selby, J. V., Friedman, G. D., Quesenberry, C. P., & Weiss, N. S. (1992) · New England Journal of Medicine · doi:10.1056/nejm199203053261001 · Cited by 1,702
Colorectal cancer screening: Clinical guidelines and rationale
Winawer, S., Fletcher, R., Miller, L., Godlee, F., Stolar, M., Mulrow, C., Woolf, S., Glick, S., Ganiats, T., Bond, J., et al. (1997) · Gastroenterology · doi:10.1053/gast.1997.v112.agast970594 · Cited by 1,612
American Cancer Society Guidelines for the Early Detection of Cancer
Smith, R. A., Cokkinides, V., von Eschenbach, A. C., Levin, B., Cohen, C., Runowicz, C. D., Sener, S., Saslow, D., & Eyre, H. J. (2002) · CA: A Cancer Journal for Clinicians · doi:10.3322/canjclin.52.1.8 · Cited by 1,588
Design of the prostate, lung, colorectal and ovarian (PLCO) cancer screening trial
Prorok, P. C., Andriole, G. L., Bresalier, R. S., Buys, S. S., Chia, D., David Crawford, E., Fogel, R., Gelmann, E. P., Gilbert, F., Hasson, M. A., et al. (2000) · Controlled Clinical Trials · doi:10.1016/s0197-2456(00)00098-2 · Cited by 1,037
Cited by
Quality indicators for colonoscopy
Rex, D. K., Schoenfeld, P. S., Cohen, J., Pike, I. M., Adler, D. G., Fennerty, M. B., Lieb, J. G., Park, W. G., Rizk, M. K., Sawhney, M. S., et al. (2015) · Gastrointestinal Endoscopy · doi:10.1016/j.gie.2014.07.058 · Cited by 1,764
Plon, S. E., Eccles, D. M., Easton, D., Foulkes, W. D., Genuardi, M., Greenblatt, M. S., Hogervorst, F. B. L., Hoogerbrugge, N., Spurdle, A. B., Tavtigian, S. V., et al. (2008) · Human Mutation · doi:10.1002/humu.20880 · Cited by 912
Knudsen, A. B., Zauber, A. G., Rutter, C. M., Naber, S. K., Doria-Rose, V. P., Pabiniak, C., Johanson, C., Fischer, S. E., Lansdorp-Vogelaar, I., & Kuntz, K. M. (2016) · JAMA · doi:10.1001/jama.2016.6828 · Cited by 474
Adverse Events After Outpatient Colonoscopy in the Medicare Population
Warren, J. L., Klabunde, C. N., Mariotto, A. B., Meekins, A., Topor, M., Brown, M. L., & Ransohoff, D. F. (2009) · Annals of Internal Medicine · doi:10.7326/0003-4819-150-12-200906160-00008 · Cited by 466
Standards of Practice Committee, Dominitz, J. A., Eisen, G. M., Baron, T. H., Goldstein, J. L., Hirota, W. K., Jacobson, B. C., Johanson, J. F., Leighton, J. A., Mallery, J. S., et al. (2003) · Gastrointestinal Endoscopy · doi:10.1016/s0016-5107(03)80005-6 · Cited by 451
Metadata
- Authors
- Gatto, N. M., Frucht, H., Sundararajan, V., Jacobson, J. S., Grann, V. R., & Neugut, A. I.
- Venue
- JNCI Journal of the National Cancer Institute
- Publisher
- Oxford University Press (OUP)
- Published
- 2003-02-05
- Volume
- 95
- Issue
- 3
- Pages
- 230-236
- ISSN
- 0027-8874 (ISSN-L)
- 1460-2105
- OpenAlex
- W2148250104
- Cited by
- 522
- References
- 30
- FWCI
- 8.86
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Risk of Perforation After Colonoscopy and Sigmoidoscopy: A Population-Based Study. https://app.cochat.ai/papers/10.1093/jnci/95.3.230
- The paper
- Gatto, N. M., Frucht, H., Sundararajan, V., Jacobson, J. S., Grann, V. R., & Neugut, A. I. (2003). Risk of Perforation After Colonoscopy and Sigmoidoscopy: A Population-Based Study. JNCI Journal of the National Cancer Institute. https://doi.org/10.1093/jnci/95.3.230
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.