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Risk of hip fracture in patients on dialysis or kidney transplant: a meta-analysis of 14 cohort studies

Authors Tan J, Li Y, Wu Z, Zhao J

Received 23 April 2018

Accepted for publication 23 July 2018

Published 24 September 2018 Volume 2018:14 Pages 1747—1755


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Professor Deyun Wang

Jiachang Tan,1,* Yuping Li,2,* Zhenjie Wu,1,* Jinmin Zhao3

1Department of Bone and Soft Tissue Surgery, Affiliated Tumor Hospital, Guangxi Medical University, Nanning 530021, People’s Republic of China; 2The First Clinical Medical College, Guangxi Medical University, Nanning 530021, People’s Republic of China; 3Department of Orthopaedics Trauma and Hand Surgery, The First Affiliated Hospital, Guangxi Medical University, Nanning 530021, People’s Republic of China

*These authors contributed equally to this work

Purpose: We aimed to conduct a meta-analysis of published cohort studies to evaluate the risk of hip fracture in patients undergoing dialysis or kidney transplantation (KT).
Methods: We identified relevant studies by searching PubMed, EMBASE and Google Scholar databases from their inception to December 31, 2017. Cohort studies evaluating risk of hip fractures in patients undergoing dialysis or KT were considered included. The methodological quality of the cohort studies was assessed using the modified Newcastle-Ottawa scale.
Results: In our meta-analysis of 14 retrospective cohort studies, a total of more than 1.5 million patients undergoing dialysis or KT were included, of whom more than 30,000 had hip fractures. After the merger, the proportion of hip fractures was 1.92% (95% CI, 1.38%-2.46%) with significant heterogeneity (I2=99.9%, P=0.000) in all patients, and the incidence rate of hip fractures (per 1,000 person-years) was 8.95 (95% CI, 4.05–13.85) with significant heterogeneity (I2=99.9%, P=0.000). The pooled relative risks (RR) value for dialysis patients compared with the general population were 6.35 (95% CI, 4.53–8.88) for male and 5.57 (95% CI, 4.44–6.99) for female. The pooled RR value for hemodialysis (HD) patients compared with peritoneal dialysis (PD) patients was 1.39 (95% CI, 1.13–1.70) with no heterogeneity (I2=0.0%, P=0.763).
Conclusion: In conclusion, the present meta-analysis reveals that about 2% of dialysis or KT patients go on to sustain a hip fracture during follow-up, with the overall hip fracture incidence rates being 8.95 per 1,000 person-years. The overall risk of hip fracture was more than 5-fold higher in dialysis patients than in the general population. Among patients on PD, HD, and KT, HD and KT patients had the highest and the lowest risk of hip fractures, respectively.

Keywords: risk, hip fracture, dialysis or kidney transplant, meta-analysis

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