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Elevated risk of ch...
Elevated risk of chronic lymphocytic leukemia and other indolent non-Hodgkin's lymphomas among relatives of patients with chronic lymphocytic leukemia
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Goldin, Lynn R. (author)
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- Bjorkholm, Magnus (author)
- Karolinska Institutet
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- Kristinsson, Sigurdur Y. (author)
- Karolinska Institutet
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- Turesson, Ingemar (author)
- Lund University,Lunds universitet,Institutionen för kliniska vetenskaper, Malmö,Medicinska fakulteten,Department of Clinical Sciences, Malmö,Faculty of Medicine
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- Landgren, Ola (author)
- Karolinska Institutet
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(creator_code:org_t)
- 2009-03-13
- 2009
- English.
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In: Haematologica. - : Ferrata Storti Foundation (Haematologica). - 1592-8721 .- 0390-6078. ; 94:5, s. 647-653
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Abstract
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- Background Previous Studies have shown increased familial risk for chronic lymphocytic leukemia. In the most comprehensive study to date, we evaluated risk of chronic lymphocytic leukemia and lymphoproliferative disorders among First-degree relatives of chronic lymphocytic leukemia cases compared to first-degree relatives of controls. Design and Methods Population-based registry data from Sweden were used to evaluate outcomes in 26,947 first-degree relatives of 9,717 chronic lymphocytic leukemia patients (diagnosed 19583 8,159 matched controls. Using a 2004) compared with 107,223 first-degree relatives of 1 as marginal survival model, we calculated relative risks (RR) and 95% confidence intervals measures of Familial aggregation. Results Compared to relatives of controls, relatives of chronic lymphocytic leukemia patients had an increased risk for chronic lymphocytic leukemia (RR=8.5, 6.1-11.7) and other non-Hodkin's lymphomas (NHLs) (RR=1.9, 1.5-2.3). Evaluating NHL subtypes, we found a striking excess of indolent B-cell NHL specifically lymphoplasmacytic lymphoma/Waldenstrom macroglobulinemia and hairy cell leukemia. No excesses of aggressive B-cell or T-cell lymphomas were found. There was no statistical excess of Hodgkin's lymphoma, multiple myeloma, or the precursor condition, monoclonal gammopathy of undetermined significance, among chronic lymphocytic leukemia relatives. Conclusions These familial aggregations are striking and provide novel clues to research designed to uncover early pathogenetic mechanisms in chronic lymphocytic leukemia including studies to identify germ line susceptibility genes. However, clinicians should counsel their chronic lymphocytic leukemia patients emphasizing that because the baseline population risks are low, the absolute risk for a first-degree relative to develop chronic lymphocytic leukemia or another indolent lymphoma is low. At this time, an increased medical surveillance of first-degree relatives of chronic lymphocytic leukemia patients has no role Outside research studies.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Hematologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Hematology (hsv//eng)
Keyword
- chronic lymphocytic leukemia
- non-Hodgkin's lymphoma
- familial risk
Publication and Content Type
- art (subject category)
- ref (subject category)
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