نتایج جستجو برای: survival fraction
تعداد نتایج: 475828 فیلتر نتایج به سال:
OBJECTIVE To evaluate 'classic' prognostic parameters, as well as DNA ploidy and S-phase fraction, in relation to disease-free and overall survival in breast invasive ductal carcinoma with long-term follow-up. MATERIAL AND METHODS The study involved 400 patients with breast invasive ductal carcinoma and median follow-up of 134 months (50-240). Histological grading, tumour size, axillary nodal...
SUMMARY Four permanent strains of human malignant melanoma, derived from a single melanoma nodule in one patient, exhibited different survival responses to the S-phase-specific drug, arabinosylcytosine. In one strain, survival was reduced by a fraction equivalent to the proportion of cells in S phase. The other three stains were much more resistant to drug doses as high as 100 Mg/ml treated for...
Long-term follow-up data for patients treated with coronary angioplasty (PTCA) for acute myocardial infarction are limited. Therefore the long-term outcome of 336 consecutive patients treated with PTCA at a median of 4.5 hours (range 0.5 to 48 hours) from symptom onset was evaluated. The in-hospital mortality was 11.1% (37 patients). Follow-up is complete for 293 of 299 (98%) hospital survivors...
BACKGROUND Cardiovascular disease is the most common cause of death in chronic obstructive pulmonary disease (COPD). However, the impact of cardiovascular comorbidities on the prognosis of COPD is not well known. OBJECTIVES This study was performed to investigate the effects of cardiovascular comorbidities on the prognosis of COPD. METHODS We enlisted 229 patients with COPD who underwent co...
from 1986 to 1996, 1020 renal transplants were performed at our center. the purposes of this study were. 1) to evaluate the patient and graft survival rates and 2) to see if some donors and recipient characteristics such as age, sex and relationship had any effects on graft survivals. 571 transplants were from living related donors (lrd) and 446 from living unrelated donors (lud). 65.9% of reci...
background: breast cancer arising in young patients (≤ 40 years) is being considered as a distinct clinical entity with more aggressive tumor features and poorer survival. our aim was to assess the impact of age on survival among a large group of iranian women diagnosed with breast cancer. methods: in a cross-sectional study, demographic and clinicopathological characteristics of patients with ...
PURPOSE To test the appropriateness of the linear-quadratic (LQ) model to describe survival of jejunal crypt clonogens after split doses with variable (small 1-6 Gy, large 8-13 Gy) first dose, as a model of its appropriateness for both small and large fraction sizes. METHODS C3Hf/KamLaw mice were exposed to whole body irradiation using 300 kVp X-rays at a dose rate of 1.84 Gy/min, and the num...
conclusions our study showed that the triple therapy of nd: yag and nd: yag + co2 fractional and hydroquinone cream had high efficiency and low morbidity compared to twofold treatment with nd: yag and nd: yag + co2 fractional. results seventeen patients with melasma (14 females and three males) with mean (± sd) age of 38.47 (± 6.29) years (range 29 - 53) were included in this study. the only si...
Serum has been fractionated by curtain electrophoresis using carboxymethyl cellulose dissolved in sodium bicarbonate electrolyte. Various fractions were produced from bovine serum and added to replicate cultures of Chang's endoepithelial cells and HeLa cells grown in a chemically defined medium. The effects of each of the various fractions on the appearance of the cultures and on cell multiplic...
In the dissertation, we study the statistical evaluation of treatment comparisons by evaluating the relative comparison of survival experiences between two treatment groups. We construct confidence interval and simultaneous confidence bands for the ratio and odds ratio of two survival functions through both parametric and nonparametric approaches. We first construct empirical likelihood confide...
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