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Socioeconomic Position is Positively Associated with Monoclonal Gammopathy of Undetermined Significance in a Population-based Cohort Study

  • Börge SchmidtEmail author
  • Elisabeth Debold
  • Mirjam Frank
  • Marina Arendt
  • Nico Dragano
  • Jan Dürig
  • Ulrich Dührsen
  • Susanne Moebus
  • Raimund Erbel
  • Karl-Heinz Jöckel
  • Lewin Eisele
Original Article
  • 27 Downloads

Abstract

Knowledge of social inequalities in monoclonal gammopathy of undetermined significance (MGUS) will contribute to understanding multiple myeloma (MM) etiology, as MGUS consistently precedes MM. The aim of the present study was to examine whether socioeconomic position (SEP) is associated with MGUS in a population-based cohort including information on potential MGUS risk factors. Overall, 4787 study participants aged 45–75 years with information on MGUS were included. SEP indicators (education, income) and potential risk factors (i.e., body mass index, diabetes, smoking, dietary factors) were assessed at baseline. Overall, 260 MGUS cases were detected at baseline and prospectively over a 10-year follow-up. In age-adjusted logistic regression models, a lower chance of having MGUS at baseline or developing MGUS during 10 years of follow-up was indicated for groups of low SEP with odds ratios (OR) of 0.39 (95% confidence interval [95%-CI] 0.19–0.76) for women and 0.48 (95% CI 0.10–1.16) for men in the lowest compared to the highest educational group. After additionally including potential mediating risk factors in the regression models, the estimated ORs changed only slightly in magnitude. Similar results were obtained for income. Current smoking and low fruit consumption were associated with MGUS independently of SEP in women, but not in men. The present study indicates a lower MGUS risk in lower SEP groups. Supporting evidence is given that smoking and diet play a role in the development of MGUS independently of SEP, while it has to be assumed that risk factors unknown to date are responsible for the observed social inequalities in MGUS.

Keywords

Health inequalities Monoclonal gammopathy of undetermined significance MGUS Socioeconomic position Multiple myeloma 

Notes

We are indebted to all study participants and to both the dedicated personnel of the study center of the Heinz Nixdorf Recall study and to the investigative group, in particular to A. Stang, U. Roggenbuck, U. Slomiany, E. M. Beck, A. Öffner, S. Münkel, R. Peter, H. Kälsch, M. Bauer, S. Schramm, S. Seibel, D. Grönemeyer, and H. Hirche. We thank Anja Führer and Sabrina Kieruzel for expert technical assistance. Advisory Board: Meinertz T., Hamburg, Germany (Chair); Bode C., Freiburg, Germany; deFeyter P. J., Rotterdam, Netherlands; Güntert B, Halli, Austria; Gutzwiller F., Bern, Switzerland; Heinen H., Bonn, Germany; Hess O., Bern, Switzerland; Klein B., Essen, Germany; Löwel H., Neuherberg, Germany; Reiser M., Munich, Germany; Schmidt G., Essen, Germany; Schwaiger M., Munich, Germany; Steinmüller C., Bonn, Germany; Theorell T., Stockholm, Sweden; Willich S. N., Berlin, Germany.

Sources of funding

This work was supported by the Heinz Nixdorf Foundation; the German Research Council [projects SI 236/8-1, SI 236/9-1, ER 155/6-1, ER 155/6-2]; an internal research grant to L.E. from the Faculty of Medicine of the University Hospital of Essen (IFORES); and Sarstedt AG & Co (laboratory equipment). Parts of the study were funded by a research grant from Celgene, Munich, Germany. FREELITE test kits were in part provided by The Binding Site Ltd, Birmingham, UK.

Authorship contributions

KHJ, RE, SM, ND, LE, JD, UD, and BS contributed to the conception, study design, and data acquisition. ED, MA, MF, and BS conducted the statistical analyses. All authors contributed to the interpretation of results, manuscript preparation, and read and approved the final manuscript.

Compliance with ethical standards

Disclosures

LE is now an employee of Janssen-Cilag, Germany.

Supplementary material

277_2019_3825_MOESM1_ESM.pdf (602 kb)
ESM 1 (PDF 602 kb)

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Börge Schmidt
    • 1
    Email author
  • Elisabeth Debold
    • 1
  • Mirjam Frank
    • 1
  • Marina Arendt
    • 1
  • Nico Dragano
    • 2
  • Jan Dürig
    • 3
  • Ulrich Dührsen
    • 3
  • Susanne Moebus
    • 1
  • Raimund Erbel
    • 1
  • Karl-Heinz Jöckel
    • 1
  • Lewin Eisele
    • 1
  1. 1.Institute for Medical Informatics, Biometry and EpidemiologyUniversity of Duisburg-EssenEssenGermany
  2. 2.Department of Medical SociologyUniversity Clinic DüsseldorfDüsseldorfGermany
  3. 3.Department of HematologyUniversity Hospital Essen, University of Duisburg-EssenEssenGermany

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