OBJECTIVES: The investigation of the effect of time and type of menopause on @entity79 ( @entity79 ) at different ages. METHODS: Five hundred and fourteen @entity1 , who had never received any hormonal substitution were studied in a cross-sectional design: 177 with normal (NMP), 210 with surgical (SUMP) and 127 with premature natural (EMP) menopause. Age at menopause was 49.1+/-3.9, 38.3+/-4.7 and 38.1+/-4.2 years (mean+/-1 S.D.), respectively. @entity79 was measured at L2-L4 vertebrae and proximal femur by the DEXA method. RESULTS: EMP @entity1 presented significantly lower @entity79 than NMP @entity1 in the 45-55-years segments (P<0.001), but did not differ from SUMP @entity1 . This group exhibited lower @entity79 than NMP between 45 and 50 years (P<0.001). Regarding femoral neck, EMP @entity1 exhibited lower values than SUMP in the 45-50 and 55-65 age segments (P<0.001) whereas SUMP @entity1 presented significantly higher @entity79 values than NMP @entity1 after 55 years of age (P<0.001). The percentages of @entity1 with @entity79 (T-score values) in the osteoporotic range were significantly greater in EMP compared with either NMP or SUMP groups (both P<0.001) whereas in femoral neck lower in SUMP than the other two categories. CONCLUSIONS: @entity1 with either natural or surgical @entity7793 exhibit lower @entity79 of trabecular bone compared with normal menopause @entity1 at the age segments 45-55 and 45-50, respectively. However, surgical menopause @entity1 exceed normal menopause @entity1 in their mixed bone @entity79 values after 60 years as well as premature natural menopause @entity1 at almost all age segments.

Bone density patterns after normal and XXXX .

@entity1 :: ('9606', 'Species') :: ['women', 'Women'] @entity79 :: ('MESH:D001847', 'Disease') :: ['vertebral BMD', 'bone mineral density', 'BMD'] @entity7793 :: ('MESH:D008594', 'Disease') :: ['premature menopause']
@entity7793 :: (MESH:D008594,Disease) :: ['premature menopause']
