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Cancer risk in pati...
Cancer risk in patients with primary immune thrombocytopenia - A Swedish nationwide register study
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- Ekstrand, Charlotta (författare)
- Karolinska Inst, Dept Med, Ctr Pharmacoepidemiol, Solna, Sweden.
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- Bahmanyar, Shahram (författare)
- Karolinska Institutet
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- Cherif, Honar (författare)
- Uppsala universitet,Hematologi
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- Kieler, Helle (författare)
- Karolinska Institutet
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- Linder, Marie (författare)
- Karolinska Institutet
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Karolinska Institutet Karolinska Inst, Dept Med, Ctr Pharmacoepidemiol, Solna, Sweden (creator_code:org_t)
- ELSEVIER SCI LTD, 2020
- 2020
- Engelska.
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Ingår i: Cancer Epidemiology. - : ELSEVIER SCI LTD. - 1877-7821 .- 1877-783X. ; 69
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
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- Background: Immune thrombocytopenia (ITP) is an autoimmune disease treated with immunosuppressive agents, thrombopoietin receptor agonists, immunomodulation drugs and/or splenectomy. Patients with ITP have been found to have increased risk ofhematological malignancies. Studies investigating stomach/liver cancer are contradictory and the risk of developing other solid tumors is largely unknown. We aimed at estimating risk of overall and organ-specific cancers in patients with primary ITP.Methods: The study population was Swedish patients with at least one ITP diagnosis recorded in the National Patient Register and a 1:10 matched comparison cohort from the population. The study period covers 1997-2016. The Cancer Register and the Cause of Death Register provided data on malignancies and deaths, respectively. Primary ITP was identified using an established algorithm. We used time-split Cox models to estimate hazard ratios (HRs) with 95 % confidence intervals (CIs), adjusted for age, sex, index-year, county, income, education, Charlson score and number of inand outpatient contacts.Results: In total 66,134 individuals were included in the study. Patients with ITP had higher risk of gastrointestinal, skin (all morphologies), lymphoid and hematological cancers. Adjusted HR (95 % CI) for cancer was 1.37 (1.27-1.48), with highest risk during the first year, but with increased risk remaining for up to 20 years for men. For women, the overall risk was increased during the first year, HR (95 % CI) 2.00 (1.55-2.60). A significantly increased liver cancer risk was seen up to 9 years after diagnosis.Conclusion: Patients with primary ITP have higher risk of cancer than the population. The observed increased risk does not seem to be solely due to surveillance bias, but might be associated with ITP or its treatments. Treating hematologists need to have high index of suspicion for cancer.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cancer and Oncology (hsv//eng)
Nyckelord
- Primary immune thrombocytopenia
- Sweden
- Nationwide
- Hematologic neoplasms
- Liver neoplasms
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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