OBJECTIVE: We aimed to determine the @entity79 ( @entity79 ) using dual energy x-ray absorptiometry in a population-based sample of @entity1 with @entity29 who were diagnosed before age 20 yr and who are currently premenopausal and less than 45 yr. METHODS: The University of Manitoba Inflammatory Bowel Disease Epidemiology Research Registry was accessed to find eligible @entity1 . Of 171 eligible subjects, 82 agreed to participate, and 70 appeared for dual energy x-ray absorptiometry. All subjects completed demographic, clinical, and lifestyle questionnaires and underwent dual energy x-ray absorptiometry with analyses for both areal and volumetric @entity79 . RESULTS: The mean areal T scores at the lumbar spine, femoral neck, total hip, and total body were -0.14 +/- 1.05, -0.15 +/- 1.04, -0.25 +/- 1.17, and +0.09 +/- 1.04, respectively. Forty-five subjects had normal @entity79 , and 25 had a T score < -1. There were no significant differences between these groups for predictive variables. Only three (4%) had @entity170 (T score < -2.5 at any site). There were 12 with disease onset before puberty and 58 after puberty. There were no differences between these groups for @entity79 . Volumetric @entity79 was slightly higher than areal @entity79 at the lumbar spine (p < 0.0002), femoral neck (p < 0.01), and total hip (p < 0.001). CONCLUSIONS: In a population-based sample of @entity1 diagnosed with @entity8787 before 20 yr of age and who are currently premenopausal, their average @entity79 is normal and the prevalence of @entity170 is very low. Despite the potential for @entity1 with @entity8787 to develop @entity170 , their @entity79 as adults is generally normal.

Bone density in a population-based cohort of premenopausal adult XXXX with early onset @entity29 .

@entity1 :: ('9606', 'Species') :: ['women', 'children'] @entity170 :: ('MESH:D010024', 'Disease') :: ['osteoporosis'] @entity29 :: ('MESH:D015212', 'Disease') :: ['inflammatory bowel disease'] @entity79 :: ('MESH:D001847', 'Disease') :: ['bone mineral density', 'BMD'] @entity8787 :: ('MESH:C535541', 'Disease') :: ['IBD']
@entity1 :: (9606,Species) :: ['women']
