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categorical variables. Statistical analyses were performed using SPSS Statistics, version 24 (IBM Corp). For all tests, a P value ≤ .050 was considered statistically significant. Results Patient Characteristics Among 20,534 total RT courses delivered at our

carcinomas of the breast. They share a lobulated pattern; express MUC1, MUC4, and mammaglobin 1 ; and are stained positive with periodic acid–Schiff and mucicarmine. In addition to morphology, a pathognomonic characteristic of MASC is the presence of the ETV

regression in each of these subgroup analyses. Statistical analysis was performed using STATA, version 15.1 (StataCorp LLP). Results Characteristics of Study Cohort Overall characteristics of the study cohort are summarized in Table 1 . Most patients were

procedures, or diagnosis other than adenocarcinoma on final histopathology; and 1,001 were treated in centers where >10% of their cases had ≥1 missing values for the main outcome parameters. Patient and tumor characteristics are outlined in Table 1 . Overall

oncology (72%). Many respondents reported having cared for inpatients and outpatients in the previous 6 months. Table 1 summarizes the respondents' characteristics and practice settings. Prevalence, Rationing Strategies, and Rationales for

scoring. Of these 127 RCTs, 108 RCTs comprising 116 treatment comparisons reported HR OS and were therefore included in the primary analysis. Key characteristics of the included RCTs are described in Table 1 . Figure 1. Process of screening and scoring

the characteristics and prognosis of SBC. Patients and Methods Using the SEER database, 3,407 patients were identified who received BCS ± RT for primary DCIS in 2000 through 2013 and subsequently developed a stage I–III invasive SBC within the same

at least 2 encounters in the EDW, with 1 encounter at least 30 days from the index date ( Figure 1 , available online, in this article, at JNCCN.org ). Demographic characteristics (age, sex, race, plan type, region) were recorded on index date and

predictors associated with a more aggressive clinical behavior in patients with positive SNs, particularly with regard to metastatic involvement of further non-SNs. Some of these analyses of factors for higher invasiveness focused on characteristics of the

higher scores indicating greater perceived social support. Statistical Analyses SPSS Statistics, version 22.0 (IBM Corp) was used to conduct the analyses. Patient baseline characteristics were described using measures of central tendency or proportions