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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Inc
    The @breast journal 9 (2003), S. 0 
    ISSN: 1524-4741
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract:  British Columbian provincial practice guidelines (PPGs) have recommended breast-conserving surgery (BCS), axillary node dissection, and radiation therapy following BCS for specific subgroups of breast cancer patients. Patient-, disease-, and physician-specific factors associated with these therapies were investigated in nonmetastatic invasive breast cancer patients. Temporal trends in BCS and physicians’ experiences with PPGs were also examined. Sources of data for patient, disease, treatment, and treating physician factors included medical records, source documents, and the British Columbia Medical Directory for 967 nonmetastatic invasive breast cancer patients diagnosed in British Columbia in 1995. BCS utilization among 496 patients with pathologically node-negative breast cancer (NNBC) was compared to earlier British Columbian data. Family physicians and surgeons were surveyed in 1997 regarding their experience with PPGs. 57% of “ideal” candidates received BCS; 87% of patients received axillary node dissection; and 95% of women treated with BCS also received radiation therapy. Tumor size, tumor location, and extent of ductal carcinoma in situ (DCIS) were associated with BCS use; age, tumor size, and tumor location were associated with axillary node dissection; and age alone was associated with radiation therapy following BCS. Fifty-four percent of NNBC patients received BCS in 1995, compared to 44% in 1991, with increases seen in most patient-, disease-, and physician-specific comparisons. The increase in BCS, and high proportion completing radiation therapy, are encouraging and may be due in part to greater exposure to PPGs.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1573-7225
    Keywords: Canada ; males ; physical activity ; testicular cancer ; undescended testis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: In order to evaluate risk factors for germ cell cancers, we conducted a case-control study of 510 men with testicular cancer aged 15 to 79 years and 996 randomly selected age-matched controls in the provinces of British Columbia and Alberta, Canada. Subjects completed a mailed questionnaire providing data on education level, ethnic origin, medical history, smoking, occupation, and recreational and sports activity. The response rate among cases was 80.3 percent and among controls was 68.1 percent. After controlling for age and ethnic origin, undescended testis was associated positively with risk of testicular cancer (odds ratio [OR]=3.5; 95 percent confidence interval [CI]=2.2–5.7) as was inguinal hernia requiring surgery (OR=2.0, CI=1.3–2.9), and hydrocoele (OR=2.6, CI=1.4–5.1). Risk of testicular cancer increased with height, with subjects taller than 180 cm having a significantly increased risk compared with those 174 cm or less (OR=1.5, CI=1.1–2.1). A moderate to high level of recreational activity level was associated inversely with testicular cancer risk (OR=0.6, CI=0.5–0.8).
    Type of Medium: Electronic Resource
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