survival curve


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survival curve

[sər′vī·vəl ‚kərv]
(nucleonics)
The curve obtained by plotting the number or percentage of organisms surviving at a given time against the dose of radiation, or the number surviving at different intervals after a particular dose of radiation.
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Survival curves were estimated using the Kaplan-Meier method, and differences between them were evaluated by the log-rank test.
Statistically, no significant difference was noted between the survival curves of the groups (c2=0.
Like all medical reporters, I see Kaplan-Meier survival curves for dozens, possibly hundreds of study reports that I cover at medical meetings each year.
Seed survival curves have a symmetrical sigmoid shape that can be described by a negative cumulative normal distribution.
By 1 year postoperatively, however, the survival curve for all patients in the present study assumed the steady decline characteristic of the general age-, sex-, and race-matched population (Figure 1).
Because there were patients with more than one type of TB diagnosed, severe cases were considered of survival curve calculation related with disease clinical form.
A Kaplan-Meier survival curve was constructed and the logrank test was used to determine statistical difference between the survivals of the different treatment groups.
For adults at 35 [degrees]C, the first 3 deaths occurred on day 12 and the final death occurred on day 24, resulting in a survival curve with a sharp decline.
Norman said, noting that a post hoc survival curve analysis was performed to look at the trajectory to delivery, and a "very marginal benefit" was seen with progesterone, but the difference was not statistically significant.
The HRs and 95% CI values mainly came from direct extraction of the original text or survival curve through extraction and calculation by software.

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