Hip fractures in elderly people are an important public health problem
. The incidence varies with ethnic group and shows wide geographical v
ariation. To examine the effect of body mass index, dietary calcium in
take, fertile period, physical activity, and years of education on the
risk of hip fracture, a case-control study was undertaken, as part of
the MEDOS study, involving 519 women with hip fracture and 808 contro
ls aged 50 or more years from Spain and Turkey. The results of this st
udy suggest that low body mass index, low dietary calcium intake, low
physical activity, a short fertile period, and a short period of educa
tion are associated with increased risk of hip fracture. The findings
confirm previous reports of the influence of several potential risk fa
ctors for hip fracture and demonstrate for the first time a protective
effect of education.