Sentence examples for assumption of excess from inspiring English sources
Theoretical analysis shows that the assumption of excess oxygen availability is not a good one, specially at high inlet concentration levels.
The second option enables the extending of continuous operation time up to 10 h and the fourth up to 15 h, both at nominal reactor power and under the assumption of initial excess reactivity corresponding to the fresh reactor core.
bLife expectancy could not be calculated because of violation of the assumption of constant excess hazard or small numbers.
The method has been mathematically proven to be valid if the assumption of constant excess hazard holds [ 18].
First, our estimation of LE and EYLL was dependent upon the assumption of constant excess hazard and premature mortality of ESRD.
They were further extrapolated to lifetime based on a semi-parametric method using the age- and sex-matched referents simulated from the life tables of the National Vital Statistics of Taiwan, which only requires an assumption of constant excess hazards [ 16, 17].
The Vuong test was not significant, failing to reject the assumption of no excess zeros, suggesting that a negative binomial model is preferred to a zero-inflated negative binomial model.
Third, all the extrapolations of survival functions are based on the validated assumption of "constant excess hazard", which can be obtained by showing a straight line after taking the logit transform of the survival ratio between the index and age- and gender-matched referents [ 16, 17].
As the assumption of a constant excess hazard may have a strong impact on the estimation of life expectancy for cervical cancer, we conduct a sensitivity analysis.
Patients with a combination of different diseases (or clusters) appeared less likely to fulfil the assumption of a constant excess hazard completely and resulted in greater relative biases, perhaps because they represent a relatively heterogeneous patient population.
The assumption of a constant excess hazard of death from the cancer may not be justified if time intervals are too wide, particularly in the first few months after diagnosis.
