نتایج جستجو برای: log rank test
تعداد نتایج: 932838 فیلتر نتایج به سال:
PURPOSE To validate whether FAM70B, which was found in our micro-array profiling as a prognostic marker for cancer survival, could accurately predict prognosis in patients with muscle-invasive bladder cancer (MIBC). MATERIALS AND METHODS A total of 124 patients with MIBC were enrolled in this study. The FAM70B expression level was analyzed by real-time polymerase chain reaction by using RNA f...
PURPOSE Elevated serum concentration of fibrinogen and decreased serum concentration of albumin have been reported to be markers of elevated systemic inflammation. We attempted to investigate the prognostic influence of preoperative fibrinogen to albumin ratio (FAR) for breast cancer. METHODS Data from 793 consecutive primary breast cancer patients were retrospectively analyzed. Serum levels ...
BACKGROUND We sought to examine the effect of different conduits on the progression of atherosclerosis in previously revascularized coronary territories. METHODS Between 1995 and 2010, 4,960 patients were discharged alive after primary isolated coronary artery bypass grafting (CABG) with a left internal thoracic artery (LITA) conduit and additional conduits as needed: radial artery (RA) or sa...
Between 1966 and 2001, 1254 patients underwent excision of a bone tumour with endoprosthetic replacement. All patients who had radiotherapy were identified. Their clinical details were retrieved from their records. A total of 63 patients (5%) had received adjunctive radiotherapy, 29 pre-operatively and 34 post-operatively. The mean post-operative Musculoskeletal Tumor Society scores of irradiat...
test day milk records of a holstein dairy farm collected during years 2004 to 2006 on 142 cows in the 1st lactation vs. 140 cows in the 2nd lactation were used in this research. there were real milk yields of cows available in each part of lactation in this farm making it possible to compare functions based on the new criteria (squared error of estimation). five functions were compared to estim...
When analyzing right-censored survival data, equality of survival curves across treatment groups is often tested using log rank tests (Peto and Peto 1972), aka Mantel-Haenszel tests. For instance, in a cancer trial, the primary response variable might be time to disease progression and the treatment groups might be chemotherapy regimens. To increase power and protect against baseline imbalances...
We describe factors determining retention and survival among HIV-infected children and adolescents engaged in two health care delivery models in Kampala, Uganda: one is a community home-based care (CHBC) and the other is a facility-based family-centred approach (FBFCA). This retrospective cohort study reviewed records from children aged from 0 to 18 years engaged in the two models from 2003 to ...
OBJECTIVE Patients with recurrent triple-negative breast cancer (TNBC) currently have no established treatment option other than chemotherapy. However, long-term chemotherapy is often difficult due to adverse effects. A previous study documented a 10%-30% response rate of progestins in oestrogen receptor-negative breast cancer. The aim of this study was to investigate the effect of medroxyproge...
لنگش از بیماری های مهم و سبب ضررهای اقتصادی و نیز دلیل اختلال در آسایش در گله های گاو شیری است. لنگش سبب تغییر رفتار طبیعی حیوان شده و بر این اساس اسکورهای مختلف حرکتی برای تشخیص آن به وجود آمده است از جمله manson & leaver ، sprecher و cook. دراین مطالعه، گاوداری صنعتی با 1300 راس گاو دوشا در منطقه شهرکرد انتخاب و در فواصل 3 ماهه(شهریور، آذر و اسفند) در این گاوداری به 300 راس گاوی که به صورت تص...
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