The DOI matches its Crossref record; 18 of the 18 references it cites were found in a registry or an index.
Survival in Medically Treated Patients with Homozygous β-Thalassemia
Open accessAbstract
BACKGROUND: The prognosis of patients with homozygous beta-thalassemia (thalassemia major) has been improved by transfusion and iron-chelation therapy. We analyzed outcome and prognostic factors among patients receiving transfusions and chelation therapy who had reached the age at which iron-induced cardiac disease, the most common cause of death, usually occurs. METHODS: Using the duration of life without the need for either inotropic or antiarrhythmic drugs as a measure of survival without cardiac disease, we studied 97 patients born before 1976 who were treated with regular transfusions and chelation therapy. We used Cox proportional-hazards analysis to assess the effect of prognostic factors and life-table analysis to estimate freedom from cardiac disease over time. RESULTS: Of the 97 patients, 59 (61 percent) had no cardiac disease; 36 (37 percent) had cardiac disease, and 18 of them had died. Univariate analysis demonstrated that factors affecting cardiac disease-free survival were age at the start of chelation therapy (P < 0.001), the natural log of the serum ferritin concentration before chelation therapy began (P = 0.01), the mean ferritin concentration (P < 0.001), and the proportion of ferritin measurements exceeding 2500 ng per milliliter (P < 0.001). With stepwise Cox modeling, only the proportion of ferritin measurements exceeding 2500 ng per milliliter affected cardiac disease-free survival (P < 0.001). Patients in whom less than 33 percent of the serum ferritin values exceeded 2500 ng per milliliter had estimated rates of survival without cardiac disease of 100 percent after 10 years of chelation therapy and 91 percent after 15 years. CONCLUSIONS: The prognosis for survival without cardiac disease is excellent for patients with thalassemia major who receive regular transfusions and whose serum ferritin concentrations remain below 2500 ng per milliliter with chelation therapy.
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
Bone Marrow Transplantation in Patients with Thalassemia
Lucarelli, G., Galimberti, M., Polchi, P., Angelucci, E., Baronciani, D., Giardini, C., Politi, P., Durazzi, S. M. T., Muretto, P., & Albertini, F. (1990) · New England Journal of Medicine · doi:10.1056/nejm199002153220701 · Cited by 636
SURVIVAL AND CAUSES OF DEATH IN THALASSAEMIA MAJOR
Zurlo, M., De Stefano, P., Borgna-Pignatti, C., Di Palma, A., Melevendi, C., Piga, A., Di Gregorio, F., Burattini, M., & Terzoli, S. (1989) · The Lancet · doi:10.1016/s0140-6736(89)90264-x · Cited by 611
Addison, G. M., Beamish, M. R., Hales, C. N., Hodgkins, M., Jacobs, A., & Llewellin, P. (1972) · Journal of Clinical Pathology · doi:10.1136/jcp.25.4.326 · Cited by 595
Brahams, D. (1987) · The Lancet · doi:10.1016/s0140-6736(87)90821-x · Cited by 533
Visual and Auditory Neurotoxicity in Patients Receiving Subcutaneous Deferoxamine Infusions
Olivieri, N. F., Buncic, J. R., Chew, E., Gallant, T., Harrison, R. V., Keenan, N., Logan, W., Mitchell, D., Ricci, G., Skarf, B., et al. (1986) · New England Journal of Medicine · doi:10.1056/nejm198604033141402 · Cited by 429
Self-citationMagnetic-Susceptibility Measurement of Human Iron Stores
Brittenham, G. M., Farrell, D. E., Harris, J. W., Feldman, E. S., Danish, E. H., Muir, W. A., Tripp, J. H., & Bellon, E. M. (1982) · New England Journal of Medicine · doi:10.1056/nejm198212303072703 · Cited by 367
MARROW TRANSPLANTATION FOR THALASSAEMIA
Donnall Thomas, E., Sanders, J. E., Buckner, C. D., Papayannopoulou, T., Borgna-Pignatti, C., De Stefano, P., Clift, R., Sullivan, K., & Storb, R. (1982) · The Lancet · doi:10.1016/s0140-6736(82)90319-1 · Cited by 340
Brittenham, G. M., Cohen, A. R., McLaren, C. E., Martin, M. B., Griffith, P. M., Nienhuis, A. W., Young, N. S., Allen, C. J., Farrell, D. E., & Harris, J. W. (1993) · American Journal of Hematology · doi:10.1002/ajh.2830420116 · Cited by 270
Self-citationPrevention of Cardiac Disease by Subcutaneous Deferoxamine in Patients with Thalassemia Major
Wolfe, L., Olivieri, N., Sallan, D., Colan, S., Rose, V., Propper, R., Freedman, M. H., & Nathan, D. G. (1985) · New England Journal of Medicine · doi:10.1056/nejm198506203122503 · Cited by 265
Self-citationContinuous Subcutaneous Administration of Deferoxamine in Patients with Iron Overload
Propper, R. D., Cooper, B., Rufo, R. R., Nienhuis, A. W., Anderson, W. F., Bunn, H. F., Rosenthal, A., & Nathan, D. G. (1977) · New England Journal of Medicine · doi:10.1056/nejm197708252970804 · Cited by 258
Self-citation
Cited by
Taher, A. T., Weatherall, D. J., & Cappellini, M. D. (2018) · The Lancet · doi:10.1016/s0140-6736(17)31822-6 · Cited by 807
Oudit, G. Y., Sun, H., Trivieri, M. G., Koch, S. E., Dawood, F., Ackerley, C., Yazdanpanah, M., Wilson, G. J., Schwartz, A., Liu, P. P., et al. (2003) · Nature Medicine · doi:10.1038/nm920 · Cited by 480
Self-citationArmand, P., Kim, H. T., Cutler, C. S., Ho, V. T., Koreth, J., Alyea, E. P., Soiffer, R. J., & Antin, J. H. (2007) · Blood · doi:10.1182/blood-2006-10-054924 · Cited by 426
Long-Term Safety and Effectiveness of Iron-Chelation Therapy with Deferiprone for Thalassemia Major
Olivieri, N. F., Brittenham, G. M., McLaren, C. E., Templeton, D. M., Cameron, R. G., McClelland, R. A., Burt, A. D., & Fleming, K. A. (1998) · New England Journal of Medicine · doi:10.1056/nejm199808133390701 · Cited by 420
Self-citationSafety and effectiveness of long-term therapy with the oral iron chelator deferiprone
Cohen, A. R., Galanello, R., Piga, A., De Sanctis, V., & Tricta, F. (2003) · Blood · doi:10.1182/blood-2002-10-3280 · Cited by 323
Self-citation
Metadata
- Authors
- Olivieri, N. F., Nathan, D. G., MacMillan, J. H., Wayne, A. S., Liu, P. P., McGee, A., Martin, M., Koren, G., & Cohen, A. R.
- Venue
- New England Journal of Medicine
- Publisher
- Massachusetts Medical Society
- Published
- 1994-09
- Volume
- 331
- Issue
- 9
- Pages
- 574-578
- ISSN
- 0028-4793 (ISSN-L)
- 1533-4406
- OpenAlex
- W2317072972
- Cited by
- 852
- References
- 18
- FWCI
- 10.92
- Type
- journal article
- Language
- en
- Open access
- bronze
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: Survival in Medically Treated Patients with Homozygous β-Thalassemia. https://app.cochat.ai/papers/10.1056/nejm199409013310903
- The paper
- Olivieri, N. F., Nathan, D. G., MacMillan, J. H., Wayne, A. S., Liu, P. P., McGee, A., Martin, M., Koren, G., & Cohen, A. R. (1994). Survival in Medically Treated Patients with Homozygous β-Thalassemia. New England Journal of Medicine. https://doi.org/10.1056/nejm199409013310903
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.