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22.03.2017 | Original Article | Ausgabe 5/2017

Osteoporosis International 5/2017

Increased risk of incident osteoporosis and osteoporotic fracture in tuberculosis patients: a population-based study in a tuberculosis-endemic area

Zeitschrift:
Osteoporosis International > Ausgabe 5/2017
Autoren:
Y.-Y. Chen, J.-Y. Feng, W.-Y. Ting, Y.-F. Yen, P.-H. Chuang, S.-W. Pan, V. Y.-F. Su, W.-J. Su

Abstract

Summary

The occurrence of osteoporosis in tuberculosis, a chronic infection, has rarely been evaluated. In this study, we found significantly higher incidence rates of osteoporosis (Adjusted hazard ratio (AHR) 1.82) and osteoporotic fracture (AHR 2.33) in tuberculosis patients than matched cohorts, which suggest that osteoporosis screening should be considered in tuberculosis patients’ follow-up program. The aim of this study is to determine the occurrence of incident osteoporosis in patients who completed anti-tuberculosis (TB) treatment.

Introduction

Chronic inflammatory disorders are associated with an increased risk of osteoporosis. Although TB is an infectious disease characterized by systemic inflammatory responses, the impact of active TB on incident osteoporosis is unclear. We used the Taiwan National Health Insurance Research Database to investigate the association between history of active TB and incident osteoporosis and osteoporotic fracture.

Methods

In this nationwide retrospective cohort study, active TB patients and their age- and sex-matched controls were identified from the National Health Insurance Research Database in Taiwan during 2000–2012. The occurrence of incident osteoporosis, osteoporotic fractures, and risk factors associated with osteoporosis among TB patients and matched controls were analyzed.

Results

We observed incident osteoporosis in 2.2% (n = 86) of the TB patients and in 1.1% (n = 162) of the matched controls. The incidence rate of osteoporosis was 4.31 and 1.80 per 1000 person-years, which was significantly higher in TB patients (p < 0.001). In multivariate analysis, TB was an independent risk factor for osteoporosis. The other independent factors associated with osteoporosis were older age, female sex, chronic obstructive pulmonary disease, asthma, and lower income. Moreover, we demonstrated that the occurrence of osteoporotic fracture was significantly higher in TB patients.

Conclusions

Patients with a history of active TB have a higher incidence rate of osteoporosis and osteoporotic fracture.

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