[ XXXX : consequences on bone mineralization].

@entity1 @entity604 @entity170 @entity448 @entity1278 @entity79 @entity2331 @entity3147 @entity2588 @entity560
INTRODUCTION: @entity1278 is responsible for @entity79 , which are well known and described in adults, but less well documented in adolescents. The aim of this research was to evaluate the frequency and severity and to determine predictive factors for these abnormalities in a population of adolescents with diagnosed @entity1278 . @entity1 AND METHODS: This retrospective study involved 39 female adolescents with @entity1278 having undergone dual energy X-ray absorptiometry prior to the age of 18 years. Clinical (age, Tanner puberty stages, weight, body mass index [BMI] at different times during the @entity448 phase and @entity2588 features), radiological ( @entity79 [ @entity79 ] in Z-score units and in absolute values), and biological (calcemia and @entity560 ) parameters were collected. RESULTS: In total, 20 @entity1 (51%) presented @entity2331 (Z-score <-1 DS and >-2.5 DS) and 2 (5%) had @entity170 (Z-score <-2.5 DS). Five (13%) exhibited a Z-score less than -2 DS. @entity79 expressed in Z-scores correlated with none of the parameters assessed. At univariate analysis, @entity79 in absolute values correlated with the age at disease onset, BMI, weight loss at the lowest weight achieved and BMI at the time of densitometry (P<0.01). At multivariate analyses, only the correlation with the age at disease onset persisted (P<0.05). CONCLUSION: @entity604 in @entity1278 is a complication that may be present as early as adolescence. It must be systematically searched for in all adolescents with severe @entity3147 because, even if @entity79 correlated with nutritional parameters, no clinical predictor for @entity170 or @entity2331 could be identified in this study.
