Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 347

The DOI matches its Crossref record; 21 of the 21 references it cites were found in a registry or an index.

Mastectomy versus breast-conserving therapy in the treatment of stage I and II carcinoma of the breast: a randomized trial at the National Cancer Institute.

Lichter, A S, Lippman, M E, Danforth, D N, d'Angelo, T, Steinberg, S M, deMoss, E, MacDonald, H D, Reichert, C M, Merino, M, Swain, S M·1992·Journal of Clinical Oncology

Abstract

PURPOSE: Mastectomy versus excisional biopsy (lumpectomy) plus radiation for the treatment of stage I and II breast cancer was compared in a prospective randomized study. PATIENTS AND METHODS: From 1979 to 1987, 247 women were randomized and 237 were treated on this study. All patients received a full axillary dissection and all node-positive patients received adjuvant chemotherapy with cyclophosphamide and doxorubicin. Radiation consisted of external-beam therapy to the whole breast with or without supraclavicular nodal irradiation followed by a boost to the tumor bed. RESULTS: The minimum time on the study was 18 months and the median time on the study was 68 months. No differences in overall survival or disease-free survival were observed. Actuarial estimates at 5 years showed that 85% of mastectomy-treated patients were alive compared with 89% of the lumpectomy/radiation patients (P2 = .49; 95% two-sided confidence interval [CI] about this difference, 0% to 9% favoring lumpectomy plus radiation). The probability of failure in the irradiated breast was 12% by 5 years and 20% by 8 years according to actuarial estimates. Of 15 local breast failures, 14 were treated with and 12 were controlled by mastectomy; the ultimate local-regional control was similar in both arms of the trial. CONCLUSION: These data add further weight to the conclusion that breast conservation using lumpectomy and breast irradiation is equivalent to mastectomy in terms of survival and ultimate local control for stage I and II breast cancer patients.

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.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1200/jco.1992.10.6.976

Cites

21 of 21 references verified0 citation errors · 0 not checkable

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.

A few free checks a day · papers already verified open instantly · results are public

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

Show all 21 references

Cited by

See all 347

Metadata

Authors
Lichter, A. S., Lippman, M. E., Danforth, D. N., d'Angelo, T., Steinberg, S. M., deMoss, E., MacDonald, H. D., Reichert, C. M., Merino, M., & Swain, S. M.
Venue
Journal of Clinical Oncology
Published
1992-06
Volume
10
Issue
6
Pages
976-983
ISSN
  • 0732-183X (ISSN-L)
  • 1527-7755
OpenAlex
W1888411879
Cited by
347
References
21
FWCI
7.95
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: Mastectomy versus breast-conserving therapy in the treatment of stage I and II carcinoma of the breast: a randomized trial at the National Cancer Institute. https://app.cochat.ai/papers/10.1200/jco.1992.10.6.976
The paper
Lichter, A. S., Lippman, M. E., Danforth, D. N., d'Angelo, T., Steinberg, S. M., deMoss, E., MacDonald, H. D., Reichert, C. M., Merino, M., & Swain, S. M. (1992). Mastectomy versus breast-conserving therapy in the treatment of stage I and II carcinoma of the breast: a randomized trial at the National Cancer Institute. Journal of Clinical Oncology. https://doi.org/10.1200/jco.1992.10.6.976

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.