[Research note: "On the progression of the incidence of hip fractures in the elderly"].

We studied 39,896 hip fractures that occurred in Quebec during 10 years. We found an increase in the incidence of hip fracture during this period. Demographical or anthropologic factors (such as smoking, alcohol consumption, residential placement), seasonal variations or socioeconomic factors alone could not give a satisfactory explanation for such an increase of this incidence.