Circumstances around the fall in a multinational hip fracture risk study: a diverse pattern for prevention. MEDOS Study Group
1998
Hip fracture is a major public health problem, but with a potential for prevention. Data from a European multicentre study on hip fracture epidemiology with a case control design, the MEDOS study, were used to describe and analyse circumstances around falls associated with hip fracture. The study includes 2185 fracture cases age > 50 years from 14 centres in southern Europe: Portugal, Spain, France, Italy, Greece and Turkey. Information was collected by a standardized and validated questionnaire translated into six languages and administered by trained interviewers. Circumstances around the fall were categorized according to: (1) place, age group and time of day; (2) functional disability; (3) drug consumption including alcohol; and (4) environmental factors. Possibilities for prevention were also analysed. High risk falls were identified using seven reasonably well-established risk factors, and similarly eight risk factors were used to identify high risk fallers. Selected trains of events were also studied. A pattern of great diversity was found both among the fallers and the environment in which they fell and fractured the hip. Those with more than one factor involved constituted only 14.7% of female and 19.7% of male fractures. A majority of cases were not physically disabled before the fall. A majority (66.5%) fell and fractured their hip indoors and only 4.3% outside in darkness. Cardiovascular and cerebrovascular comborbidity were observed with 4.9 and 7.8%, of falls respectively. Falls in a stairway comprised 11% of falls. The correlation between the number of the risk factors of the faller and in the environment was 0.07 and there was no difference between males and females. The pattern of causality behind falls that cause hip fracture and therefore of prevention comprises many sometimes small groups and intricate time sequence. The results suggest that global preventive strategies could presently not be implemented. Instead, the pattern of prevention should include different target groups and be country and site specific. For the high risk group of institutionalized patients prevention can be implemented without delay.
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