The aim was to quantify the influence of demographic and reproductive factors on breast cancer.
The subjects'path through the screening clinic, the inherent differences between the control groups, and the possible biases when using screening programmes were also considered.
A case-control study using both personal contact and postal questionnaires to gather demographic and reproductive information.
Women attending two breast screening recall clinics in Portsmouth and Southampton over the period 1990-92.
Altogether 1813 subjects between the ages of 50 and 65 years.
The subjects'disease status was ascertained using a mammography and classified into four categories :
253 breast cancer (cases) ;
207 benign breast disease (BD) ;
410 requiring early rescreen (ER) ;
and 943 for standard recall (SR).
The BD, ER, and SR groups were used as separate controls.
Of the factors considered here, the only two that showed a consistently significant effect on the risk of breast cancer were age and body mass index (BMI).
Odds ratios were calculated for five yearly age groups and four groups of BMI using the youngest and lightest group as the baseline, respectively.
There seemed to be an increase in the risk of breast cancer for increasing age for each comparison made (for cases v SR : OR (95% CI)=1.60 (1.10,2.34), 2.54 (1.76,3.68)). All subjects above the lowest quartile of BMI experienced increased risk, al...
Mots-clés Pascal : Tumeur maligne, Glande mammaire, Epidémiologie, Facteur risque, Femme, Homme, Dépistage, Méthodologie, Analyse risque, Mammographie, Radiodiagnostic, Royaume Uni, Europe, Glande mammaire pathologie, Etude cas témoin
Mots-clés Pascal anglais : Malignant tumor, Mammary gland, Epidemiology, Risk factor, Woman, Human, Medical screening, Methodology, Risk analysis, Mammography, Radiodiagnosis, United Kingdom, Europe, Mammary gland diseases, Case control study
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0233476
Code Inist : 002B20E02. Création : 199608.