Predicting Non-traumatic Incident Fractures on Rheumatic Disease Patients on Long-term Glucocorticoids

Background: To identify contributors to non-traumatic incident fractures on rheumatic disease patients who are on long term glucocorticoids (LTGC) Methods: Two hundred and twenty patients on LTGC (110 with vertebral fracture and 110 without vertebral fracture) who participated in a cross-sectional s...

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Main Authors: Sze-Lok Lau, Ho So, James Francis Griffith, Vivian Wing Yin Hung, Violet Ka Lai Lee, Kitty Yan Kwok, Shirley King Yee Ying, Jack Jock Wai Lee, Crystal Ying Chan, Ling Qin, Lai-Shan Tam
Format: Article
Language:English
Published: World Scientific Publishing 2024-01-01
Series:Journal of Clinical Rheumatology and Immunology
Online Access:https://www.worldscientific.com/doi/10.1142/S2661341724740377
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author Sze-Lok Lau
Ho So
James Francis Griffith
Vivian Wing Yin Hung
Violet Ka Lai Lee
Kitty Yan Kwok
Shirley King Yee Ying
Jack Jock Wai Lee
Crystal Ying Chan
Ling Qin
Lai-Shan Tam
author_facet Sze-Lok Lau
Ho So
James Francis Griffith
Vivian Wing Yin Hung
Violet Ka Lai Lee
Kitty Yan Kwok
Shirley King Yee Ying
Jack Jock Wai Lee
Crystal Ying Chan
Ling Qin
Lai-Shan Tam
author_sort Sze-Lok Lau
collection DOAJ
description Background: To identify contributors to non-traumatic incident fractures on rheumatic disease patients who are on long term glucocorticoids (LTGC) Methods: Two hundred and twenty patients on LTGC (110 with vertebral fracture and 110 without vertebral fracture) who participated in a cross-sectional study in 2014-2015 were invited to have repeated assessments on 1) aBMD using dual-energy X-ray absorptiometry (DXA), 2) volumetric BMD (vBMD), microstructure and bone strength assessment of the wrist and tibia using high-resolution peripheral quantitative computed tomography (HR-pQCT) and 3) spine radiographs in the 5th year. Clinical covariates were recorded on questionnaires, and Fracture Risk Assessment Tool (FRAX) score was calculated accordingly. Non-traumatic incident fracture over the 5-year were documented. Receiver operating characteristic curve (ROC) analysis was performed to compare the strength of fracture prediction tools. Results: Out of the 140 patients who completed the 5th year assessments, 47 (33.6%) developed incident fractures. History of previous fracture, aBMD at hip and lumbar spine, T-score, trabecular vBMD, trabecular bone volume fraction and estimated bone strength at the tibia at baseline remained significantly different after adjusting for age between the group with and without incident fractures. The area under curve (AUC) of a prediction model comprised of age, history of previous fracture and average trabecular vBMD at tibia was comparable with that of the FRAX score (0.710 vs 0.679-0.702), and slightly outperformed than the AUC of DXA aBMD at hip and lumbar spine (0.628-0.668) under ROC analysis. Conclusion: Age, history of previous fracture and average trabecular vBMD at tibia could be the main contributors in building a prediction model for non-traumatic incident fracture in rheumatic disease patients on LTGC.
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spelling doaj-art-5430e0849dba4167819e66e7a89738d22024-11-12T08:27:23ZengWorld Scientific PublishingJournal of Clinical Rheumatology and Immunology2661-34172661-34252024-01-0124supp01505110.1142/S2661341724740377Predicting Non-traumatic Incident Fractures on Rheumatic Disease Patients on Long-term GlucocorticoidsSze-Lok Lau0Ho So1James Francis Griffith2Vivian Wing Yin Hung3Violet Ka Lai Lee4Kitty Yan Kwok5Shirley King Yee Ying6Jack Jock Wai Lee7Crystal Ying Chan8Ling Qin9Lai-Shan Tam10Department of Medicine n Therapeutics, The Chinese University of Hong Kong, Hong Kong SARDepartment of Medicine n Therapeutics, The Chinese University of Hong Kong, Hong Kong SARDepartment of Imaging & Interventional Radiology, The Chinese University of Hong Kong, Hong Kong SARBone Quality and Health Centre of the Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SARDepartment of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong SARDepartment of Medicine, Queen Elizabeth Hospital, Hong Kong SARDepartment of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong SARThe Jockey Club School of Public Health & Primary Care, The Chinese University of Hong Kong, Hong Kong SARThe Jockey Club School of Public Health & Primary Care, The Chinese University of Hong Kong, Hong Kong SARBone Quality and Health Centre of the Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong SARDepartment of Medicine n Therapeutics, The Chinese University of Hong Kong, Hong Kong SARBackground: To identify contributors to non-traumatic incident fractures on rheumatic disease patients who are on long term glucocorticoids (LTGC) Methods: Two hundred and twenty patients on LTGC (110 with vertebral fracture and 110 without vertebral fracture) who participated in a cross-sectional study in 2014-2015 were invited to have repeated assessments on 1) aBMD using dual-energy X-ray absorptiometry (DXA), 2) volumetric BMD (vBMD), microstructure and bone strength assessment of the wrist and tibia using high-resolution peripheral quantitative computed tomography (HR-pQCT) and 3) spine radiographs in the 5th year. Clinical covariates were recorded on questionnaires, and Fracture Risk Assessment Tool (FRAX) score was calculated accordingly. Non-traumatic incident fracture over the 5-year were documented. Receiver operating characteristic curve (ROC) analysis was performed to compare the strength of fracture prediction tools. Results: Out of the 140 patients who completed the 5th year assessments, 47 (33.6%) developed incident fractures. History of previous fracture, aBMD at hip and lumbar spine, T-score, trabecular vBMD, trabecular bone volume fraction and estimated bone strength at the tibia at baseline remained significantly different after adjusting for age between the group with and without incident fractures. The area under curve (AUC) of a prediction model comprised of age, history of previous fracture and average trabecular vBMD at tibia was comparable with that of the FRAX score (0.710 vs 0.679-0.702), and slightly outperformed than the AUC of DXA aBMD at hip and lumbar spine (0.628-0.668) under ROC analysis. Conclusion: Age, history of previous fracture and average trabecular vBMD at tibia could be the main contributors in building a prediction model for non-traumatic incident fracture in rheumatic disease patients on LTGC.https://www.worldscientific.com/doi/10.1142/S2661341724740377
spellingShingle Sze-Lok Lau
Ho So
James Francis Griffith
Vivian Wing Yin Hung
Violet Ka Lai Lee
Kitty Yan Kwok
Shirley King Yee Ying
Jack Jock Wai Lee
Crystal Ying Chan
Ling Qin
Lai-Shan Tam
Predicting Non-traumatic Incident Fractures on Rheumatic Disease Patients on Long-term Glucocorticoids
Journal of Clinical Rheumatology and Immunology
title Predicting Non-traumatic Incident Fractures on Rheumatic Disease Patients on Long-term Glucocorticoids
title_full Predicting Non-traumatic Incident Fractures on Rheumatic Disease Patients on Long-term Glucocorticoids
title_fullStr Predicting Non-traumatic Incident Fractures on Rheumatic Disease Patients on Long-term Glucocorticoids
title_full_unstemmed Predicting Non-traumatic Incident Fractures on Rheumatic Disease Patients on Long-term Glucocorticoids
title_short Predicting Non-traumatic Incident Fractures on Rheumatic Disease Patients on Long-term Glucocorticoids
title_sort predicting non traumatic incident fractures on rheumatic disease patients on long term glucocorticoids
url https://www.worldscientific.com/doi/10.1142/S2661341724740377
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