Association of Respiratory Tuberculosis with Incident Bone Fracture: Bridging the Tuberculosis Airway Infection and the Osteoporotic Bone.

PLoS One

Graduate Institute of Clinical Medical Science and School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.

Published: July 2017

Objective: The relationship between respiratory tuberculosis (RT) and incident fragility fracture and osteoporosis/fragility fracture in the general population is not well determined; therefore, we conducted a nationwide cohort study to investigate this relationship.

Methods: We used the National Health Insurance Research Database of Taiwan to identify 6612 newly diagnosed patients with RT (RT cohort) and 13220 patients without RT (non-RT cohort) from 1999 to 2005. The mean durations of follow-up were (6.73 ± 4.00 years, 8.11 ± 3.24 years) in the (RT cohort, non- RT cohort); respectively. The occurrence of incident fragility fracture and osteoporosis/fragility fracture were followed up until the end of 2011. The adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs) and 98% CIs of incident fragility fracture and osteoporosis/fragility fracture were estimated using the multivariable Cox proportional hazard model after adjusting for age, sex, occupation, drug use, and comorbidities.

Results: A Cox proportional hazards regression analysis was performed and showed the aHRs of [incident fragility fracture; osteoporosis/fragility fracture] were [1.69 (95% CI = 1.26-2.28, 98% CI = 1.18-2.44); 1.42 (95% CI = 1.25-1.61, 98% CI = 1.21-1.65)] between the RT and non-RT cohorts. Regarding the sex, the aHRs of the [incident fragility fracture; osteoporosis / fragility fracture] were [1.57 (98% CI = 1.10-2.23, 98% CI = 1.02-2.41); 1.15 (95% CI = 0.97-1.36, 98% CI = 0.94-1.41)] in the men. The aHRs of the RT cohort without oral steroid use in the [incident fragility fracture; osteoporosis / fragility fracture] were [1.87 (95% CI = 1.20-2.90, 98% CI = 1.09-3.19); 1.41 (95% CI = 1.19-1.67, 98% CI = 1.14-1.74)].

Conclusion: The RT associated with the incident fragility fracture, either in men or absence of oral steroid use.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5178997PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0168673PLOS

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