Abstract

Background. The impact of human genetic background on low-trauma fracture (LTF) risk has not been evaluated in the context of human immunodeficiency virus (HIV) and clinical LTF risk factors.

Methods. In the general population, 6 common single-nucleotide polymorphisms (SNPs) associate with LTF through genome-wide association study. Using genome-wide SNP arrays and imputation, we genotyped these SNPs in HIV-positive, white Swiss HIV Cohort Study participants. We included 103 individuals with a first, physician-validated LTF and 206 controls matched on gender, whose duration of observation and whose antiretroviral therapy start dates were similar using incidence density sampling. Analyses of nongenetic LTF risk factors were based on 158 cases and 788 controls.

Results. A genetic risk score built from the 6 LTF-associated SNPs did not associate with LTF risk, in both models including and not including parental hip fracture history. The contribution of clinical LTF risk factors was limited in our dataset.

Conclusions. Genetic LTF markers with a modest effect size in the general population do not improve fracture prediction in persons with HIV, in whom clinical LTF risk factors are prevalent in both cases and controls.

Details

Title
Contribution of Genetic Background and Clinical Risk Factors to Low-Trauma Fractures in Human Immunodeficiency Virus (HIV)-Positive Persons: The Swiss HIV Cohort Study
Author
Junier, Thomas 1 ; Rotger, Margalida 2 ; Biver, Emmanuel 3 ; Ledergerber, Bruno 4 ; Barceló, Catalina 2 ; Bartha, Istvan 1 ; Kovari, Helen 4 ; Schmid, Patrick 5 ; Fux, Christoph 6 ; Bernasconi, Enos 7 ; Claudia Brun del Re 8 ; Weber, Rainer 4 ; Fellay, Jacques 9 ; Tarr, Philip E 10 

 Swiss Institute of Bioinformatics, Ecole Polytechnique Fédérale de Lausanne 
 Institute of Microbiology, University Hospital Center, University of Lausanne 
 Department of Bone Diseases, Geneva University Hospitals and Faculty of Medicine 
 Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, University of Zurich 
 Division of Infectious Diseases, Kantonsspital St. Gallen 
 Division of Infectious Diseases, Kantonsspital Aarau, University of Basel 
 Division of Infectious Diseases, Ospedale Regionale, Lugano 
 Department of Infectious Diseases, Bern University Hospital, University of Bern 
 Swiss Institute of Bioinformatics, Ecole Polytechnique Fédérale de Lausanne; Division of Infectious Diseases, University Hospital, Lausanne 
10  Infectious Diseases Service, Kantonsspital Baselland, University of Basel, Bruderholz, Switzerland 
Publication year
2016
Publication date
Spring 2016
Publisher
Oxford University Press
e-ISSN
23288957
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
3170976346
Copyright
© The Author 2016. Published by Oxford University Press on behalf of the Infectious Diseases Society of America. This work is published under http://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.