| Titre : | Effect of prefracture versus postfracture dietary assessment on hip fracture risk estimates. (1996) |
| Auteurs : | K. MICHAELSSON ; L. HOLMBERG ; S. LJUNGHALL ; H. MALLMIN ; P.G. PERSSON ; A. WOLK ; Study Group of the Multiple Risk Survey on Swedish Women for Eating Assessment. INC |
| Type de document : | Article |
| Dans : | International journal of epidemiology (vol. 25, n° 2, 1996) |
| Pagination : | 403-410 |
| Langues: | Anglais |
| Mots-clés : | Col fémoral ; Epidémiologie ; Méthodologie ; Consommation alimentaire ; Comportement alimentaire ; Etude prospective ; Calcium ; Produit laitier ; Homme ; Système ostéoarticulaire [pathologie] ; Traumatisme ; Suède ; Europe |
| Résumé : | [BDSP. Notice produite par INIST 834nR0xo. Diffusion soumise à autorisation]. Background. Dietary factors are presumed to have influence on bone mass and hence fracture susceptibility. Most information in this respect is based on retrospective assessment of previous dietary habits. In a population-based case-control study nested within a cohort, we collected dietary information both before and after a first hip fracture. Thus it was possible to study reported changes in dietary habits, intentional as well as unintentional, among hip fracture patients after a first hip fracture and to compare postfracture with prefracture dietary information. Methods. More than 65 000 women born 1914-1948 in two counties in central Sweden completed a food frequency questionnaire regarding their usual current dietary habits, before attending a mammographic screening between the years 1987 and 1990. Subsequently 123 of them sustained a first hip fracture and were defined as cases in the present study. For every case, one control, individually matched by age and county of residence, was selected from the cohort. A second identical food frequency questionnaire was mailed to both cases and controls on average 2 years after the hip fracture event. In total 98 case/control pairs could be included in the analysis. The association between diet and hip fracture was evaluated and the results from the two dietary assessments were contrasted. Women who themselves claimed that they had not changed their diet in recent years were analysed separately. Results. The h... |
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