Objective: The aim of the study was to study the influence of urinary
disorders as urinary incontinence on the prevalence of hip fracture in
85-year-old women. Method's: A representative community-based populat
ion study was performed at the geriatric outpatient department of a un
iversity hospital in a sample consisting of 658 85-year-old women, of
which 69% were living at home and 31% were living in institutions. The
prevalence of hip fractures was registered and measurement with dual
photon absorptiometry of the right calcaneum was performed. The subjec
ts were questioned covering sociodemographic background, the occurrenc
e, type, frequency and amount of urinary incontinence, medical examina
tions and investigations of the prevalence of hip fracture. Results: H
ip fracture was significantly associated with urinary incontinence (P
< 0.001) for women and the odds ratio of hip fracture was twice that f
ound in general population (OR = 2.42). Body mass index and weight wer
e both significant higher(P < 0.01) among women with urinary incontine
nce and hip fracture. The frequency of urinary incontinence was also s
ignificant correlated to hip fracture (P < 0.001). Subjects with diabe
tes had a tendency to be associated with urinary incontinence(P < 0.06
) In a logistic multiple regression analysis, body mass index, urinary
incontinence and cancers were the only explanatory factors for hip fr
actures at 85 years of age. Conclusion: The association between postme
nopausal urinary incontinence and hip fracture are multifactorial and
whether this is a result of decreasing estrogen levels or a result of
general aging process is still under debate. Women with urinary incont
inence and earlier atrumatic multiple postmenopausal fractures should
be considered a special target group for estrogen prophylaxis in order
to prevent further severe fractures.