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Peak Bone Mass and Quantitative Ultrasound Bone Properties in Young Adulthood : A Study in the PEAK-25 Cohort of Women

Sandström, Linnéa; McGuigan, Fiona E A LU ; Callréus, Mattias LU and Åkesson, Kristina LU (2015) In Journal of Clinical Densitometry
Abstract

Peak bone mass is normally reached in the third decade of life. Previously, in the population-based PEAK-25 cohort (n = 1061, age 25.5 ± 0.2), we demonstrated that bone mineral density in the population-based PEAK-25 cohort is comparatively high; therefore, this study aimed to determine if the calcaneus microarchitecture mirrored this. In the process, we describe normative quantitative ultrasound (QUS) values for 25-yr-old women and the relationship between QUS values and extremes of body weight. QUS variables speed of sound (SOS), broadband ultrasound attenuation (BUA), and stiffness index were measured. Young adult values were based on the manufacturer-supplied QUS reference values. Analyses were performed in the cohort as a whole,... (More)

Peak bone mass is normally reached in the third decade of life. Previously, in the population-based PEAK-25 cohort (n = 1061, age 25.5 ± 0.2), we demonstrated that bone mineral density in the population-based PEAK-25 cohort is comparatively high; therefore, this study aimed to determine if the calcaneus microarchitecture mirrored this. In the process, we describe normative quantitative ultrasound (QUS) values for 25-yr-old women and the relationship between QUS values and extremes of body weight. QUS variables speed of sound (SOS), broadband ultrasound attenuation (BUA), and stiffness index were measured. Young adult values were based on the manufacturer-supplied QUS reference values. Analyses were performed in the cohort as a whole, and additionally, to understand the relationship between body weight and QUS values in young women, the variables were categorized into octiles for weight or body mass index (BMI) and the lowest and highest octiles were compared. In the cohort, SOS values, reflecting bone density, were higher (108 ± 18%), whereas BUA values, reflecting bone complexity, were lower (90 ± 14%) compared to the young adult reference population. SOS did not correlate with body weight or BMI. In the cohort, overall correlations between BUA weight, and BMI were small and positive (Pearson's r coefficients 0.261 and 0.197, respectively; p <0.001), although in the low-weight group, r coefficients were higher (r = 0.313 and 0.268; p <0.05). In contrast, in the high-weight group, correlation with BUA values tended to be small, negative, and nonsignificant. Correlation between QUS and dual-energy X-ray absorptiometry-measured bone mineral density was low to moderate and significant at all skeletal sites (r = 0.37-0.52). Whereas coefficients tended to be higher in the low-weight group, the reverse was apparent for the low-BMI group. In these 25-yr-old women, a comparatively high dual-energy X-ray absorptiometry-measured bone mass is offset by less complex bone structures assessed by QUS. This may have implications for later osteoporosis assessment and future fracture risk.

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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
BUA, Peak bone mass, Quantitative ultrasound, SOS, Young adult women
in
Journal of Clinical Densitometry
publisher
Elsevier
external identifiers
  • Scopus:84962339034
ISSN
1094-6950
DOI
10.1016/j.jocd.2016.03.001
language
English
LU publication?
yes
id
86ed1491-9c91-4591-884e-2a6f82c11ca0
date added to LUP
2016-06-07 12:42:33
date last changed
2016-10-13 08:42:16
@misc{86ed1491-9c91-4591-884e-2a6f82c11ca0,
  abstract     = {<p>Peak bone mass is normally reached in the third decade of life. Previously, in the population-based PEAK-25 cohort (n = 1061, age 25.5 ± 0.2), we demonstrated that bone mineral density in the population-based PEAK-25 cohort is comparatively high; therefore, this study aimed to determine if the calcaneus microarchitecture mirrored this. In the process, we describe normative quantitative ultrasound (QUS) values for 25-yr-old women and the relationship between QUS values and extremes of body weight. QUS variables speed of sound (SOS), broadband ultrasound attenuation (BUA), and stiffness index were measured. Young adult values were based on the manufacturer-supplied QUS reference values. Analyses were performed in the cohort as a whole, and additionally, to understand the relationship between body weight and QUS values in young women, the variables were categorized into octiles for weight or body mass index (BMI) and the lowest and highest octiles were compared. In the cohort, SOS values, reflecting bone density, were higher (108 ± 18%), whereas BUA values, reflecting bone complexity, were lower (90 ± 14%) compared to the young adult reference population. SOS did not correlate with body weight or BMI. In the cohort, overall correlations between BUA weight, and BMI were small and positive (Pearson's r coefficients 0.261 and 0.197, respectively; p &lt;0.001), although in the low-weight group, r coefficients were higher (r = 0.313 and 0.268; p &lt;0.05). In contrast, in the high-weight group, correlation with BUA values tended to be small, negative, and nonsignificant. Correlation between QUS and dual-energy X-ray absorptiometry-measured bone mineral density was low to moderate and significant at all skeletal sites (r = 0.37-0.52). Whereas coefficients tended to be higher in the low-weight group, the reverse was apparent for the low-BMI group. In these 25-yr-old women, a comparatively high dual-energy X-ray absorptiometry-measured bone mass is offset by less complex bone structures assessed by QUS. This may have implications for later osteoporosis assessment and future fracture risk.</p>},
  author       = {Sandström, Linnéa and McGuigan, Fiona E A and Callréus, Mattias and Åkesson, Kristina},
  issn         = {1094-6950},
  keyword      = {BUA,Peak bone mass,Quantitative ultrasound,SOS,Young adult women},
  language     = {eng},
  month        = {12},
  publisher    = {ARRAY(0x8885838)},
  series       = {Journal of Clinical Densitometry},
  title        = {Peak Bone Mass and Quantitative Ultrasound Bone Properties in Young Adulthood : A Study in the PEAK-25 Cohort of Women},
  url          = {http://dx.doi.org/10.1016/j.jocd.2016.03.001},
  year         = {2015},
}