The bone mineral content (BMC) of the lumbar spine and femoral neck was studied in
relation to aging in healthy Hungarian women by duel photon-absorptiometric method.
The data were compared with North-American and West-European values. The Hungarian
values are lower than these for reported from North-America or France, but similar
to the BMC values for Sweden. The observed vertebral and femoral bone loss could be
well represented by cubic equations. The acceleration of bone loss seems to begin
around 40 years. The rate of bone loss was similar to the published values but the
decrease in bone loss in the 6th and 7th decades was more suggestive. With regard
to the fracture-threshold below which the risk for non-traumatic fractures of vertebrae
increases, about 60% of Hungarian women at age 50-59 and about 84% at age 60-69 are
considered to be at risk. It is concluded that geographical and habitual differences
might be important factors in the development and change of BMC for different populations.