ArticleAnnals of Saudi medicine
Prevalence of discordance between femoral and lumbar bone mineral density among older adults in a community-based setting.
Article in Annals of Saudi medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundT-score measurement via dual-energy X-ray absorptiometry (DXA) is the gold standard for assessing and classifying the bone mineral density status of patients as normal, osteopenic, or osteoporotic according to the World Health Organization criteria. However, the diagnostic accuracy may be affected by the skeletal site selected for DXA.
objectivesEstimate the prevalence of femoral and lumbar BMD discordance in a community-based setting in Riyadh, Saudi Arabia.
designCross-sectional.
settingPolyclinics at a tertiary care center. PATIENTS AND
methodsThis study included all patients aged ≥60 years who visited the Department of Family Medicine and underwent DXA screening between 2016 and 2022.
main outcome measuresDiscordance was defined as a difference in BMD status between two skeletal sites. Minor discordance occurs when adjacent sites have different diagnoses; i.e., one site exhibits osteoporosis and the other exhibits osteopenia. In contrast, major discordance occurs when one site exhibits osteoporosis and the other exhibits normal BMD. SAMPLE SIZE: 1429 older adults.
resultsThe study patients had a median age of 66 years (60-99, minimum-maximum). The prevalence of discordance was 41.6%, with major discordance present in 2.2% of patients and minor discordance in 39.4%. The distribution of discordance did not differ significantly among the sociodemographic factors.
conclusionDiscordance is prevalent among the Saudi geriatric population. During the analysis of DXA results, physicians should account for discordance when diagnosing and ruling out osteoporosis in high-risk patients. LIMITATIONS: All factors influencing discordance were not explored thoroughly; this study mainly focused on older adults. Furthermore, diverse age groups need to be investigated for a more comprehensive understanding of the analyzed factors.
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