Dobbins Amelia G, Brennan Sharon L, Williams Lana J, Kotowicz Mark A, Sarah Bree, Birch Yvonne, Pasco Julie A
School of Medicine, Deakin University, Geelong, Australia.
Arch Osteoporos. 2014;9:196. doi: 10.1007/s11657-014-0196-x. Epub 2014 Oct 14.
We investigated the reasons for referral of older Australians aged 70 years and older to dual energy X-ray absorptiometry (DXA). The most common clinical indication was being aged 70 years and older, followed by monitoring for fracture or low bone mineral density (BMD). Compared to males, females were twice as likely to have osteoporotic BMD.
PURPOSE/INTRODUCTION: Little is known about reasons for the referral of older Australians to dual energy X-ray absorptiometry (DXA) for bone mineral density (BMD) measurements. Thus, we aimed to document the reasons for referral to DXA in Australian men and women aged 70 years and older and investigate any differences between the sexes.
Reasons for DXA referral were examined in 5438 patients aged ≥ 70 years (78.5 % female), referred to the Geelong Bone Densitometry Service, south-eastern Victoria, 2003-2010. Clinical indication codes derived from patient records were used to ascertain reasons for referral. We ascertained age, sex and BMD measures at the femoral neck and spine for each patient.
The most common reason for DXA referral was being aged ≥ 70 years (64.6 %), followed by monitoring of fracture or low BMD. In this referred population, a greater proportion of men than women had BMD in the normal range (men 30.2 % vs. women 10.9 %, p < 0.001), whereas sex differences in the opposite direction were seen for BMD in the osteopenic range (women 47.7 % vs. men 44.3 %, p = 0.04) and in the osteoporotic range (women 41.4 % vs. men 25.5 %, p < 0.001). After age adjustment, women were twice as likely to have BMD in the osteoporotic range compared to men (odds ratio (OR) 2.25, 95% confidence interval (95%CI) 1.95-2.61).
For both sexes, the most common reason for referral was being aged 70 years or older. Referred women were twice as likely as men to have BMD in the osteoporosis range. These data suggest that even more women may need to be referred to DXA.
我们调查了70岁及以上澳大利亚老年人被转诊至双能X线吸收法（DXA）检查的原因。最常见的临床指征是年龄在70岁及以上，其次是监测骨折或低骨密度（BMD）。与男性相比，女性发生骨质疏松性骨密度的可能性是男性的两倍。
目的/引言：对于澳大利亚老年人被转诊至双能X线吸收法（DXA）进行骨密度（BMD）测量的原因，人们了解甚少。因此，我们旨在记录澳大利亚70岁及以上男性和女性被转诊至DXA检查的原因，并调查性别之间的差异。
对2003年至2010年转诊至维多利亚州东南部吉朗骨密度检测服务中心的5438例年龄≥70岁的患者（78.5%为女性）进行了DXA转诊原因的检查。从患者记录中获取的临床指征代码用于确定转诊原因。我们确定了每位患者的年龄、性别以及股骨颈和脊柱的骨密度测量值。
DXA转诊的最常见原因是年龄≥70岁（64.6%），其次是监测骨折或低骨密度。在这个转诊人群中，骨密度处于正常范围的男性比例高于女性（男性30.2%对女性10.9%，p<0.001），而在骨量减少范围内（女性47.7%对男性44.3%，p=0.04）和骨质疏松范围内（女性41.4%对男性25.5%，p<0.001）观察到了相反方向的性别差异。年龄调整后，女性发生骨质疏松性骨密度的可能性是男性的两倍（优势比（OR）2.25，95%置信区间（9CI）1.95-2.61）。
对于男性和女性来说，转诊的最常见原因都是年龄在70岁及以上。被转诊的女性发生骨质疏松性骨密度的可能性是男性的两倍。这些数据表明，可能需要转诊至DXA检查的女性更多。
