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        "resumen" => "<span class="elsevierStyleSectionTitle">Objetivo</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">a&#41;Estudiar la densidad mineral &#243;sea &#40;DMO&#41; y la concentraci&#243;n mineral &#243;sea &#40;CMO&#41; en columna lumbar &#40;L 2 y L 4&#41; con densitometr&#237;a radiol&#243;gica de doble energ&#237;a &#40;DEXA&#41; en una muestra de ni&#241;os de la comunidad de Madrid&#44; b&#41; relacionar los valores obtenidos con la edad&#44; sexo y desarrollo puberal&#44; y c&#41; comparar los valores de DMO encontrados con los publicados de otras comunidades aut&#243;nomas&#46;</p> <span class="elsevierStyleSectionTitle">Material y m&#233;todos</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Fueron seleccionados al azar en nuestra consulta 351 escolares&#58; 184 ni&#241;os y 167 ni&#241;as&#46; El rango de edad oscil&#243; entre 6 meses y 20 a&#241;os&#46; Los sujetos fueron agrupados en intervalos de un a&#241;o seg&#250;n el sexo&#59; y de acuerdo al desarrollo puberal&#46;</p><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">El contenido mineral &#243;seo fue medido con densitometr&#237;a radiol&#243;gica de doble energ&#237;a en la columna lumbar en L 2-L 4 con un modelo lunar DPX-L&#46; El an&#225;lisis estad&#237;stico se ha realizado con el SPSS versi&#243;n 6&#46;0&#46;1&#46; Se han obtenido la media y desviaci&#243;n est&#225;ndar para cada grupo de edad estudiado&#44; y tambi&#233;n seg&#250;n los estadios de Tanner&#59; se han comparados las DMO y CMO del sexo masculino y femenino por grupos de edad&#59; se han comparado las DMO y CMO dentro de cada sexo entre un grupo de edad y el inmediatamente superior mediante an&#225;lisis de la variancia&#59; se ha evaluado el efecto que tiene la edad sobre la DMO y la CMO y&#44; por &#250;ltimo&#44; mediante t&#233;cnicas de an&#225;lisis multivariante se han estimado los modelos de regresi&#243;n entre la edad y la DMO&#44; y la edad con la CMO&#46;</p> <span class="elsevierStyleSectionTitle">Resultados</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">La DMO presenta variaciones entre las diversas comunidades y aun en muestras diferentes de una misma comunidad&#46; En el estudio de Carrascosa et al la DMO&#44; expresada en DE score&#44; es m&#225;s alta en numerosos de los grupos de edad estudiados respecto a nuestros valores y a los de Moreno et al y Armad&#225; et al&#59; los valores de DMO en nuestro estudio son mayores que los encontrados por Moreno et al y Armad&#225; et al en casi todos los grupos de edad&#59; al contrastar la DMO seg&#250;n los estadios de Tanner nuestros valores fueron&#44; en general&#44; superiores a los de los otros estudios en todos los estadios&#59; los primeros 4 a&#241;os y la adolescencia son los per&#237;odos de m&#225;ximo increment de la DMO&#44; pero tambi&#233;n aumenta de forma oscilante en las etapas intermedias&#59; las ni&#241;as presentan unos valores m&#225;s altos de DMO en los grupos de edad de 12-13 y 14-15 a&#241;os&#44; probablemente en relaci&#243;n con un inicio m&#225;s precoz de la pubertad y&#44; por &#250;ltimo&#44; las rectas de regresi&#243;n de la DMO frente a la edad para ambos sexos son paralelas y tienen igual punto de corte&#44; lo que significa que son coincidentes&#46; Igual sucede para la CMO&#46;</p><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Ver conclusi&#243;n&#46;</p>"
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        "resumen" => "<span class="elsevierStyleSectionTitle">Objective</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">To study the bone mineral density &#40;DMO&#41; and the bone mineral concentration &#40;CMO&#41; in lumbar spine &#40;L 2 and L 4&#41; by dual-energy x-ray absorptiometry with a lunar DPX &#40;DEXA&#41; in a children sample of the community of Madrid&#59; to relate the values obtained with the age&#44; sex and pubertal development&#59; and to compare the values of DMO found with the publications of other autonomous communities&#46;</p> <span class="elsevierStyleSectionTitle">Material and methods</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Fueron seleccionados al azar en nuestra consulta 351 children&#44; 184 boys and 167 girls selected at random in our environment&#46; The age range oscillated between 6 months and 20 years&#46; Grouped in intervals of a year according to the sex&#59; and in accordance with the pubertal development&#46;</p><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">The bone mineral content was measured by dualenergy x-ray absorptiometry with a lunar DPX in the lumbar spine at level of L 2-L 4&#46; The statistic analysis has been accomplished with the SPSS version 6&#46;0&#46;1&#46; They have been obtained the average and deviation standard for each group from studied age&#44; and also according to pubertal development&#59; the DMO and CMO of the boys and girls have been compared by groups of age&#59; the DMO and CMO within each sex between a group of age and the immediately superior have been compared through an analysis of the variance&#59; the effect that the age has on the DMO and the CMO has been evaluated and finally through multivariant analysis techniques the regression models have been estimated between the age and the DMO&#44; and the age with the CMO&#46;</p> <span class="elsevierStyleSectionTitle">Results</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">The DMO shows variations between the various communities and even in different samples of a same community&#44; in Carrascosa study the DMO is highest&#44; expressed in SD score&#44; in many several groups of age studied with respect to our values and with the values of Moreno et al and Armad&#225; et al&#59; the values of DMO in our study are greater than the ones found by Moreno et al and Armad&#225; et al&#59; the first four years and the adolescence are the periods of maximum increase of the DMO&#44; but it also increases in an oscillatory way in the intermediate stages&#59; the girls present some highest levels of DMO in the groups of age of 12-13 and 14-15 years&#44; probably in relationship to a most precocious beginning of the puberty&#59; and finally the regression line of the DMO as compared to the age for both sexes are parallel and have equal court point&#44; what means that they are coincident&#46;</p><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">Conclusi&#243;n&#46;</p>"
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Vol. 52. Núm. 4.
Páginas 319-326 (abril 2000)
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Vol. 52. Núm. 4.
Páginas 319-326 (abril 2000)
Acceso a texto completo
Variaciones de la densidad y de la concentración mineral ósea entre distintas comunidades
Bone mineral density and bone mineral content variations between different communities
Visitas
7087
M. Marco Hernández*, M.J. Méndez Fernández, J.C. Ruiz Ramírez
Unidad de Crecimiento. Hospital Militar Gómez Ulla. Madrid
Este artículo ha recibido
Información del artículo
Objetivo

a)Estudiar la densidad mineral ósea (DMO) y la concentración mineral ósea (CMO) en columna lumbar (L 2 y L 4) con densitometría radiológica de doble energía (DEXA) en una muestra de niños de la comunidad de Madrid, b) relacionar los valores obtenidos con la edad, sexo y desarrollo puberal, y c) comparar los valores de DMO encontrados con los publicados de otras comunidades autónomas.

Material y métodos

Fueron seleccionados al azar en nuestra consulta 351 escolares: 184 niños y 167 niñas. El rango de edad osciló entre 6 meses y 20 años. Los sujetos fueron agrupados en intervalos de un año según el sexo; y de acuerdo al desarrollo puberal.

El contenido mineral óseo fue medido con densitometría radiológica de doble energía en la columna lumbar en L 2-L 4 con un modelo lunar DPX-L. El análisis estadístico se ha realizado con el SPSS versión 6.0.1. Se han obtenido la media y desviación estándar para cada grupo de edad estudiado, y también según los estadios de Tanner; se han comparados las DMO y CMO del sexo masculino y femenino por grupos de edad; se han comparado las DMO y CMO dentro de cada sexo entre un grupo de edad y el inmediatamente superior mediante análisis de la variancia; se ha evaluado el efecto que tiene la edad sobre la DMO y la CMO y, por último, mediante técnicas de análisis multivariante se han estimado los modelos de regresión entre la edad y la DMO, y la edad con la CMO.

Resultados

La DMO presenta variaciones entre las diversas comunidades y aun en muestras diferentes de una misma comunidad. En el estudio de Carrascosa et al la DMO, expresada en DE score, es más alta en numerosos de los grupos de edad estudiados respecto a nuestros valores y a los de Moreno et al y Armadá et al; los valores de DMO en nuestro estudio son mayores que los encontrados por Moreno et al y Armadá et al en casi todos los grupos de edad; al contrastar la DMO según los estadios de Tanner nuestros valores fueron, en general, superiores a los de los otros estudios en todos los estadios; los primeros 4 años y la adolescencia son los períodos de máximo increment de la DMO, pero también aumenta de forma oscilante en las etapas intermedias; las niñas presentan unos valores más altos de DMO en los grupos de edad de 12-13 y 14-15 años, probablemente en relación con un inicio más precoz de la pubertad y, por último, las rectas de regresión de la DMO frente a la edad para ambos sexos son paralelas y tienen igual punto de corte, lo que significa que son coincidentes. Igual sucede para la CMO.

Ver conclusión.

Palabras clave:
Densidad mineral ósea
Densitometría ósea de doble energía
Niños
Concentración mineral ósea
Objective

To study the bone mineral density (DMO) and the bone mineral concentration (CMO) in lumbar spine (L 2 and L 4) by dual-energy x-ray absorptiometry with a lunar DPX (DEXA) in a children sample of the community of Madrid; to relate the values obtained with the age, sex and pubertal development; and to compare the values of DMO found with the publications of other autonomous communities.

Material and methods

Fueron seleccionados al azar en nuestra consulta 351 children, 184 boys and 167 girls selected at random in our environment. The age range oscillated between 6 months and 20 years. Grouped in intervals of a year according to the sex; and in accordance with the pubertal development.

The bone mineral content was measured by dualenergy x-ray absorptiometry with a lunar DPX in the lumbar spine at level of L 2-L 4. The statistic analysis has been accomplished with the SPSS version 6.0.1. They have been obtained the average and deviation standard for each group from studied age, and also according to pubertal development; the DMO and CMO of the boys and girls have been compared by groups of age; the DMO and CMO within each sex between a group of age and the immediately superior have been compared through an analysis of the variance; the effect that the age has on the DMO and the CMO has been evaluated and finally through multivariant analysis techniques the regression models have been estimated between the age and the DMO, and the age with the CMO.

Results

The DMO shows variations between the various communities and even in different samples of a same community, in Carrascosa study the DMO is highest, expressed in SD score, in many several groups of age studied with respect to our values and with the values of Moreno et al and Armadá et al; the values of DMO in our study are greater than the ones found by Moreno et al and Armadá et al; the first four years and the adolescence are the periods of maximum increase of the DMO, but it also increases in an oscillatory way in the intermediate stages; the girls present some highest levels of DMO in the groups of age of 12-13 and 14-15 years, probably in relationship to a most precocious beginning of the puberty; and finally the regression line of the DMO as compared to the age for both sexes are parallel and have equal court point, what means that they are coincident.

Conclusión.

Key words:
Bone mineral density
Dual energy X-ray absorptiometry
Bone mineral concentration
Children
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