MPH Steven J. Katz MD

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Re-excision is common in breast-conserving surgery (BCS), partly due to lack of consensus on margin definitions. A population-based surgeon sample was used to determine current attitudes toward margin width and identify characteristics associated with margin choice. Breast cancer patients treated from 2005 to 2007 were identified from Los Angeles and(More)
To explore whether patients’ desires for and expectations of medical care differ between the United States and Canada, we surveyed 652 patients and 105 physicians at primary care sites in Michigan and Ontario. Patient desires were similar at both sites, but expectations were higher in Michigan. Michigan physicians gave higher estimates of patient desire(More)
The use of both bilateral prophylactic mastectomy and contralateral prophylactic mastectomy (CPM) has increased significantly during the last decade. Various risk models have been developed to identify patients at increased risk for breast cancer. The indications for bilateral prophylactic mastectomy for patients without a diagnosis of breast cancer include(More)
Little is known about the interaction among surgeons, patients, and other physicians in selecting breast cancer surgery. We contacted attending surgeons (n = 456) of a population-based sample of 2645 breast cancer patients diagnosed in Detroit and Los Angeles from December 2001 to January 2003. Eighty percent completed a written survey with clinical(More)
While variation in breast cancer quality indicators has been studied, to date there have been no studies examining the degree of surgeon-level variation in patient-reported outcomes. The purpose of this study is to examine surgeon-level variation in patient appraisals of their breast cancer care experiences. Survey responses and clinical data from breast(More)
Usage of magnetic resonance imaging (MRI) in newly diagnosed breast cancer patients is increasing, despite scant evidence that it improves outcomes. Little is known about the knowledge, perspectives, and clinical characteristics of surgeons associated with MRI use. Women with early-stage breast cancer undergoing definitive surgery between July 2013 and(More)
To isolate the effect of spoken language from financial barriers to care, we examined the relation of language to use of preventive services in a system with universal access. Cross-sectional survey. Household population of women living in Ontario, Canada, in 1990. Subjects were 22,448 women completing the 1990 Ontario Health Survey, a population-based(More)
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