Abstract
Previously, we reported increased risk of heavy-chain (HC) monoclonal gammopathy of undetermined significance (MGUS) among first-degree (1°) relatives of multiple myeloma (MM) or HC-MGUS probands. This study investigated whether there was comparable risk for light-chain (LC) MGUS among 911 relatives of the same HC-MGUS/MM probands versus a reference population of 21 463. Seventeen 1° relatives had LC-MGUS (adjusted prevalence = 1·7%, 95% CI = 0·9-2·6%). There was increased risk of LC-MGUS in relatives of MM probands (RR = 3·4, 95% CI = 2·0-5·5). We saw no increased risk in relatives of HC-MGUS probands. We conclude that the prevalence of LC-MGUS is significantly higher among 1° relatives of MM probands compared to the reference population.
Original language | English (US) |
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Pages (from-to) | 472-475 |
Number of pages | 4 |
Journal | British journal of haematology |
Volume | 157 |
Issue number | 4 |
DOIs | |
State | Published - May 2012 |
Keywords
- Epidemiology
- MGUS
- Myeloma
ASJC Scopus subject areas
- Hematology