The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
The importance of classifying initial co-morbidity in evaluating the outcome of diabetes mellitus
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
Maximum utilization of the life table method in analyzing survival
Cutler, S. J., & Ederer, F. (1958) · Journal of Chronic Diseases · doi:10.1016/0021-9681(58)90126-7 · Cited by 2,870
The pre-therapeutic classification of co-morbidity in chronic disease
Feinstein, A. R. (1970) · Journal of Chronic Diseases · doi:10.1016/0021-9681(70)90054-8 · Cited by 1,544
Self-citation
Cited by
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
Comorbidity measures for use with administrative data.
Elixhauser, A., Steiner, C., Harris, D. R., & Coffey, R. M. (1998) · Medical Care · doi:10.1097/00005650-199801000-00004 · Cited by 9,921
Validation of a combined comorbidity index
Charlson, M., Szatrowski, T. P., Peterson, J., & Gold, J. (1994) · Journal of Clinical Epidemiology · doi:10.1016/0895-4356(94)90129-5 · Cited by 6,587
Sorror, M. L., Maris, M. B., Storb, R., Baron, F., Sandmaier, B. M., Maloney, D. G., & Storer, B. (2005) · Blood · doi:10.1182/blood-2005-05-2004 · Cited by 2,969
Metadata
- Authors
- Kaplan, M. H., & Feinstein, A. R.
- Venue
- Journal of Chronic Diseases
- Publisher
- Elsevier BV
- Published
- 1974-09
- Volume
- 27
- Issue
- 7-8
- Pages
- 387-404
- ISSN
- 0021-9681 (ISSN-L)
- OpenAlex
- W2092671961
- Cited by
- 670
- References
- 2
- FWCI
- 0.87
- 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: The importance of classifying initial co-morbidity in evaluating the outcome of diabetes mellitus. https://app.cochat.ai/papers/10.1016/0021-9681(74)90017-4
- The paper
- Kaplan, M. H., & Feinstein, A. R. (1974). The importance of classifying initial co-morbidity in evaluating the outcome of diabetes mellitus. Journal of Chronic Diseases. https://doi.org/10.1016/0021-9681(74)90017-4
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.
