Abstract
Background and Objectives: The burden of osteoporosis is projected to increase. Identification and prompt intervention for osteoporotic fractures are important. Adjusting the Fracture Risk Assessment (FRAX®) tool with trabecular bone score (TBS) could improve risk prediction. However, little is known about whether TBS-adjusted FRAX® would change the proportion of individuals qualified for osteoporosis intervention. Therefore, the aim of the present study was to compare the proportions of Taiwanese adults who qualified for intervention, according to the FRAX® and TBS-adjusted FRAX®, with stratification by sex, age group, and glucose regulation status. Materials and Methods: A medical record review on adults 50−90 years who had undergone a general health examination in a regional hospital in Taiwan was conducted. FRAX® and TBS-adjusted FRAX® were calculated. FRAX® cut-points of ≥ 20% for major osteoporotic fracture and ≥3% for hip fracture were adopted to identify individuals qualified for osteoporosis intervention. Individuals were classified as prediabetes and diabetes if their HbA1c was 5.7−6.4% and >6.4%, respectively. Results: A total of 8098 individuals with a mean age of 61.0 years were included. The proportion of men qualified for intervention for hip fracture was significantly lower according to TBS-adjusted FRAX® (17.2%) compared with FRAX® (20.7%) (p < 0.001), with a similar pattern across all three age groups and in those with prediabetes. In contrast, the proportion of women qualified for intervention for major osteoporotic fracture was significantly higher according to TBS-adjusted FRAX® (4.6%) compared with FRAX® (3.7%) (p < 0.001), particularly among those with prediabetes 60−69 years. Conclusions: TBS-adjusted FRAX® led to small but significant changes in the proportions of individuals qualified for intervention in specific age groups and glucose regulation status.
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