Association of age-related declined renal function and osteoporosis based on trabecular bone score in Bushehr Elderly Health (BEH) program
Osteoporosis is a systemic disease characterized by decreased bone strength and an increased risk of fracture in old age. Age and pathologic renal failure are independent risk factors for osteoporosis.
This study used a cross-sectional design and was carried out based on data collected during the Bushehr Elderly Health (BEH) program, Phase II. A total of 2,125 elderly participants aged over 60 years old entered the study after meeting the inclusion criteria and providing informed consent. They underwent examinations for weight, height, abdominal and hip circumference, as well as blood pressure measurement. All participants also underwent DXA to assess bone mass density (BMD). Trabecular bone score (TBS) was calculated using the DXA apparatus software output. Univariate and adjusted multivariate linear regression analyses were used to evaluate the associations.
In the univariate linear regression analysis, there was a direct correlation between age-related renal failure and TBS (β = 0.038, p < 0.0001), neck of femur BMD (β = 0.047, p < 0.0001), and lumbar BMD (β = 0.055, p < 0.0001). However, after adjusting for BMI, age, sex, smoking, and physical activity, no significant association was observed for these variables.
It is hypothesized that age-related renal failure cannot be considered as an independent risk factor for osteoporosis in elderly individuals aged over 60 years old.
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