Normative data for calcaneal broadband ultrasound attenuation among children and adolescents from Colombia: the FUPRECOL Study
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2015-12-21
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Abstract
Summary Quantitative ultrasound (QUS) has been found to
be a safe and reliable method for evaluating bone mineral
density (BMD). Using calcaneal QUS techniques, the current
study contributes to remedying this gap in the literature by
establishing normative data among children and adolescents
from Colombia.
Introduction Minimal data on BMD changes are available
from populations in developing countries. BMD reference
values for children and adolescents have not been published
for a Latin-American population. The aim of this study was to
establish a normal reference range of calcaneal broadband
ultrasound attenuation (BUA) in Colombian children and adolescents
with ages ranging from 9 to 17.9 years.
Methods A sample of 1001 healthy Colombian youth
(boys n=445 and girls n = 556), children, and adolescents
(9–17.9 years old) participated in the study. A calcaneus
QUS parameter (BUA) was obtained for boys and girls,
stratified by age group. Furthermore, height, weight, fat
mass percentage, and body mass index were measured.
Centile smoothed curves for the third, tenth, 25th, 50th,
75th, 90th, and 97th percentiles were calculated using the
LMS method (L [curve Box–Cox], M [curve median], and
S [curve coefficient of variation]).
Results Mean (± SD) values for the participants’ anthropometric
data were 12.9 ± 2.3 years of age, 45.2 ± 11.5 kg
weight, 1.51± 0.1 m height, 19.5± 3.1 kg/m2 BMI, and 69.5
± 17.1 dB/MHz BUA. Overall, all variables were significantly
higher in boys except in BMI and body fat percentage. Girls
generally had higher mean calcaneal BUA (dB/MHz) values
than the boys, except in the age ranges 16 and 17.9, p>0.05.
In addition, the BUA (dB/MHz) increased with age throughout
childhood and adolescence and reached a plateau by age
15–17.9 for girls.
Conclusions For the first time, our results provide sex- and
age-specific BUA reference values for Colombian children
and adolescents aged 9–17.9 years. A more specific set of
reference values is useful for clinicians and researchers and
informs clinical practice to monitor bone mineral status.
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Atribución-NoComercial-CompartirIgual 2.5 Colombia