Examples of 'proportional hazards' in a sentence
Meaning of "proportional hazards"
Proportional hazards refers to a statistical concept often used in survival analysis or time-to-event analysis. It refers to the assumption that the effect of various factors or predictors on the hazard (likelihood of an event occurring) remains constant or is proportional over time. This assumption is necessary for certain statistical models to accurately estimate hazard rates and make predictions
How to use "proportional hazards" in a sentence
Basic
Advanced
proportional hazards
No violation of the proportional hazards assumption was found.
Proportional hazards model.
Derived from a stratified proportional hazards model.
Cox proportional hazards models were used to examine associations.
Based on a stratified proportional hazards model.
Cox proportional hazards models were used to estimate associations.
Requests the checking of the proportional hazards assumption.
Cox proportional hazards statistical analysis.
No significant violations of the proportional hazards assumption were detected.
Proportional hazards analysis showed pulmonary function to be the best predictor of survival.
Hazard ratio is from stratified proportional hazards model.
Cox proportional hazards models will be used for the survival analysis.
There was no evidence of violations of the proportional hazards assumption.
A nonparametric proportional hazards model was developed to evaluate the relative risk of individual trees dying.
Hazard ratio is derived from a stratified proportional hazards model.
See also
Based on the Cox proportional hazards stratified analysis.
It was also used with duration of survival in proportional hazards modelling.
Cox proportional hazards regression were used to determine the risks of SD.
There was no evidence that the proportional hazards assumption had been violated.
The proportional hazards assumption was evaluated by checking the Schoenfeld residuals.
Rate ratios were estimated by conditional logistic or proportional hazards regression.
We tested the proportional hazards assumption using Schoenfeld residuals.
No significant statistical evidence showed that the assumption of proportional hazards was violated.
Logistic regression and cox proportional hazards model were used for data analysis.
Two series of risk estimates were produced with the proportional hazards model.
Multivariate logistic regression and cox proportional hazards were used to identify outcome related co variables.
The proportional hazards assumption was investigated using a Schoenfeld residual test.
Analysis was done using Cox proportional hazards regression.
The Cox proportional hazards model is sometimes called a semiparametric model by contrast.
Interpreting the results of a Cox proportional hazards model.
Multivariate Cox proportional hazards models were used to analyse the data.
Time to first event was analysed in a Cox proportional hazards model.
Multivariable linear and Cox proportional hazards regression were used to adjust for covariates.
Hazard Ratio is derived from an unstratified proportional hazards model.
A multivariate Cox proportional hazards model was used to determine the independent predictors of graft failure.
These groups were compared using Cox proportional hazards modelling.
Based on Cox proportional hazards model comparing the hazard functions associated with treatment groups.
The data were analyzed using Cox proportional hazards regression.
The Cox proportional hazards regression using R gives the results shown in the box.
Multivariate analysis was done using a forward stepwise Cox proportional hazards model.
A HR of adalimumab vs placebo from proportional hazards regression with treatment as factor.
Abnormal values of ABI as predictors of death were assessed by Cox proportional hazards models.
David Cox invented the proportional hazards model for the analysis of survival data.
The survival curves were parameterised using Cox proportional hazards estimates.
Logistic regression and Cox proportional hazards models were used for the statistical analyses.
Fecundability ratios were calculated using an analog of the Cox proportional hazards model.
Patient survival is described using a Cox proportional hazards regression model that considers the confounding factors.
The key assumption underlying the Cox model is that of proportional hazards.
Based on Cox proportional hazards model.
The analysis of continuous variables was performed using the Cox proportional hazards model.
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Examples of using Proportional
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The electoral system is proportional preferential voting
Proportional representation of the population eligible to vote
The sound is not proportional to the speed
Examples of using Hazards
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No thermal hazards during use of this product
Coastal zones are at risk from a number of hazards
Special hazards arising from the chemical
