Erik Thurfjell

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PURPOSE To evaluate independent double reading in mammography screening and, specifically, the effect on breast cancer detection. MATERIALS AND METHODS Mammographic studies of 11,343 women, aged 41-75 years, who participated in a population-based screening program were independently screened by two experienced radiologists. A retrospective analysis also(More)
BACKGROUND The effectiveness of mammography screening could be improved if factors that influence nonattendance were better understood. METHODS We examined attitudes, beliefs, and knowledge in relation to nonattendance in a population-based mammography screening program, using a case-control design. Data were collected from November 1997 to March 1998(More)
BACKGROUND We describe an epidemiologic analytical study of the relationship between current diet and breast cancer risk. METHOD The study design is a case-control analysis. Cases were recruited from a mammography screening program used within the national health care system; the control subjects were selected from subjects free of breast cancer in the(More)
The aim of this study was to identify predictors of non-attendance in a population-based mammography-screening programme in central Sweden, on the basis of telephone interviews with 434 non-attendees and 515 attendees identified in a mammography register. Non-attendance was studied in relation to sociodemographic factors, indicators of general health(More)
PURPOSE Hormone replacement therapy (HRT) may increase the mammographic density with a possible reduction in the sensitivity or specificity. If so, the benefit of mammographic screening in women using HRT could be compromised. We evaluated the hypothesis that HRT regimens have differential effects on the mammographic density depending on treatment regimens(More)
The aim was to investigate the psychological consequences of further investigation after breast cancer screening. Study participants include 509 women (61%) recalled due to suspicious findings on screening mammograms, and a matched control group of 285 women (68%) with normal mammograms. Psychological distress was prospectively assessed with the Hospital(More)
The aim was to investigate the influence of undergoing further examinations due to a false-positive mammogram on women's re-attendance at the next scheduled screening and their frequency of breast self-examination (BSE). Study participants included 517 women (62% response) recalled due to findings on screening mammograms indicating possible malignancies,(More)
Objective: To investigate the role of sociodemographic factors in predicting mammography uptake in an outreach screening program. Methods: Linkage of data from a regional population-based mammography program with four Swedish nationwide registers: the Population and Housing Census of 1990, the Fertility Register, the Cancer Register, and the Cause of Death(More)
We retrieved breast mammograms for 370 women 40 to 74 years old with no history of breast cancer, for whom birth weight, birth length, placental weight and other birth characteristics were indicated in their standard birth records at the Uppsala University Hospital. Blind evaluation of the mammograms allowed these to be classified according to Wolfe's(More)
PURPOSE To evaluate a system of computer-assisted diagnosis (CAD) in mammography. MATERIAL AND METHODS A sample of 120 sets of two-view mammograms was examined by an expert screener, a screening radiologist, a clinical radiologist, and a CAD system. The screening and clinical radiologists examined the mammograms twice, first without and then with the help(More)