• ###### curve
• Kaplan-Meier survival curve for the Pseudomonas aeruginosa culture-positive and P. aeruginosa culture-negative groups. (nih.gov)
• The Kaplan-Meier survival curve, using the Log rank comparison, indicated that P.aeruginosa positive sputum culture was not associated with mortality in this population. (nih.gov)
• To evaluate whether the expression of ARMS in primary cutaneous melanomas was related to patient outcome, a Kaplan-Meier survival curve was constructed. (nih.gov)
• S(t) is theoretically a smooth curve, but it is usually estimated using the Kaplan-Meier (KM) curve. (wikipedia.org)
• An important advantage of the Kaplan-Meier curve is that the method can take into account some types of censored data, particularly right-censoring, which occurs if a patient withdraws from a study, is lost to follow-up, or is alive without event occurrence at last follow-up. (wikipedia.org)
• When no truncation or censoring occurs, the Kaplan-Meier curve is the complement of the empirical distribution function. (wikipedia.org)
• The Berkson and Gage equation is S ( t ) = p + [ ( 1 − p ) × S ∗ ( t ) ] {\displaystyle S(t)=p+[(1-p)\times S^{*}(t)]} where S ( t ) {\displaystyle S(t)} is the proportion of people surviving at any given point in time, p {\displaystyle p} is the proportion that are permanently cured, and S ∗ ( t ) {\displaystyle S^{*}(t)} is an exponential curve that represents the survival of the non-cured people. (wikipedia.org)
• ###### Disease-Free Survival
• The proportion of people with a disease that are cured by a given treatment, called the cure fraction or cure rate, is determined by comparing disease-free survival of treated people against a matched control group that never had the disease. (wikipedia.org)
• In complex diseases, such as cancer, researchers rely on statistical comparisons of disease-free survival (DFS) of patients against matched, healthy control groups. (wikipedia.org)
• ###### plots
• The hazard ratio is simply the relationship between the instantaneous hazards in the two groups and represents, in a single number, the magnitude of distance between the Kaplan-Meier plots. (wikipedia.org)
• ###### prognostic factors
• The influence of tumour thickness and ulceration, two well-recognised prognostic factors on overall survival for cutaneous melanoma (Balch et al, 2009), was also assessed in this study group as a method standard and a comparison. (nih.gov)
• ###### median survival time
• Shorter median survival time in melanoma patients with stronger ARMS expression (30 months) was revealed in comparison with the patients with weak-to-moderate ARMS immunointensity (42 months). (nih.gov)
• The median survival time was 9.2 months (95% CI, 6.9-11.4 months) (Fig. 3). (nih.gov)
• ###### statistical
• Although Kaplan-Meier is one of the statistical tools commonly used by applied statisticians in analyzing censored data, it is not appropriate in case there are ties between censoring and event times. (sciencepublishinggroup.com)
• ###### Overall
• Ninety-four patients with diagnosis of clear cell renal cell carcinomas (CCRCC), all clinicopathological characteristics and overall survival were unrolled in this study. (nih.gov)
• The median overall survival of patients in the surgery group and control group was 20.5 and 9.1 months, respectively, (P = 0.006). (nih.gov)
• Stronger immunointensity of ARMS was observed mostly in melanomas with Breslow tumour thickness >1.0 mm (Fisher's exact test, P=0.002) or with nodal metastasis (Fisher's exact test, P=0.026), and was correlated with a worse overall survival in melanoma patients (log-rank test, P=0.04). (nih.gov)
• λ = Overall Death Rate , λ ∗ = Expected death rate , ν = Disease-specific death rate {\displaystyle \lambda ={\text{Overall Death Rate}},~\lambda ^{*}={\text{Expected death rate}},~\nu ={\text{Disease-specific death rate}}} The equation does not define a survival proportion but simply describes the relationships between disease-specific death (excess hazard) rates, background mortality rates (expected death rate) and the overall observed mortality rates. (wikipedia.org)
• The excess hazard rate is related to relative survival, just as hazard rates are related to overall survival. (wikipedia.org)
• In epidemiology, relative survival (as opposed to overall survival and associated with excess hazard rates) is defined as the ratio of observed survival in a population to the expected or background survival rate. (wikipedia.org)
• ###### compare the survival
• In statistics, the log-rank test is a hypothesis test to compare the survival distributions of two samples. (wikipedia.org)
• ###### thereof
• However, to be able to compare the novel proposed indices with previous studies of MIPI, the low, intermediate and high risk groups, and the sizes thereof, were kept constant when visualizing the indices using Kaplan Meier. (nih.gov)
• ###### method
• This is true because Kaplan-Meier method assumes that the censored individuals survive slightly longer than the failed individuals, an assumption that can't hold all through, thus the method ignores them. (sciencepublishinggroup.com)
• ###### probabilities
• In real life application and simulation, such as those performed in the paper, give researchers the tools and opportunity to observe the effect of incorporating censored individuals in estimating survival probabilities in the presence of ties. (sciencepublishinggroup.com)
• ###### distributions
• Kaplan-Meier and Log-Rank (Mantel-Cox) Pairwise Comparison test of survival distributions for different levels of each group. (nih.gov)
• ###### intermediate survival
• The LC rats (Group B) and the FRD-LC rats treated with the medium dose of JPJD (Group F) had an intermediate survival time. (nih.gov)
• ###### function
• The value of the survival function between successive distinct sampled observations ("clicks") is assumed to be constant. (wikipedia.org)
• The survival function is also known as the survivor function or reliability function. (wikipedia.org)
• The term reliability function is common in engineering while the term survival function is used in a broader range of applications, including human mortality. (wikipedia.org)
• Median survival may be determined from the survival function. (wikipedia.org)
• For example, for survival function 2, 50% of the subjects survive 3.72 months. (wikipedia.org)
• For example, for survival function 4, more than 50% of the subjects survive longer than the observation period of 10 months. (wikipedia.org)
• ###### estimation
• Cause-specific survival estimation using the coding of death certificates has considerable inaccuracy and inconsistency and does not permit the comparison of rates across registries. (wikipedia.org)
• ###### genes
• Ten candidate genes were identified as survival genes in 15 glioblastoma cell lines. (frontiersin.org)
• ###### survive
• Lisa Bedford, a Texas-based writer who runs the site The Survival Mom, told me she got into disaster preparedness around the same time, when she wasn't sure if her husband's construction business would survive the downturn. (collapsesurvival.com)
• Harry Browne began offering seminars on how to survive a monetary collapse in 1967, with Don Stephens (an architect) providing input on how to build and equip a remote survival retreat. (collapsesurvival.com)
• ###### model
• These results indicated that the FRD model was a promoting factor in the fatality rate of the FRD-LC model even when the FRD model was terminated, and the administration of 37.5 g·kg−1 JPJD could improve the survival rate of liver cancer (Figure 1). (nih.gov)
• In this model, the survival at any given time is equal to those that are cured plus those that are not cured, but who have not yet died or, in the case of diseases that feature asymptomatic remissions, have not yet re-developed signs and symptoms of the disease. (wikipedia.org)
• ###### rate
• In this study, our results showed that the survival rate of the liver cancer with food restriction and diarrhea (FRD-LC) rats was lower than the liver cancer (LC) rats, and the tumor volume of the FRD-LC rats was higher than the LC rats. (nih.gov)
• ###### true
• A quality hatchet can be a true lifesaver when it comes to building shelters and processing firewood in a wilderness survival setting. (collapsesurvival.com)