Sentence examples for time dependent predictors from inspiring English sources

Cox's proportional hazards models and extensions of these models for time dependent predictors will be used to investigate mortality.

For both these scenarios the simulation results indicate that the estimates seem to be unbiased, particularly for the regression coefficients corresponding to the time dependent predictor variable in both model components.

For the simulation study we generated repeated measures data from a probit log- beta model stated as follows: (2) where x ij is a binary time dependent predictor variable (similar to the viral infection status in the DAVIS data, x ij = 1 if ith subject is viral positive for jth week, x ij = 0 if negative).

Age at marriage, marriage cohort, educational level and urbanization of residential area were taken as non-time-dependent predictors while heterogamy factors included age and education.

Cox regression models for time-dependent predictors [ 29] were used to assess the association between the number of environmental barriers in each housing section and mortality.

The covariates among prognostic factors for survival time were studied using an extended Cox proportion hazards model, including time-dependent predictors.

Consequently, this parameter was used in our longitudinal analyses of the effects of time-dependent predictors on decrease in quality of life.

p2Xj t) is the entire collection of time-dependent predictors at time t (including variables stage(t), education(t), treatment*stage(t), married*stage(t), education*stage(t), hormone*stage(t) in the study).

This statistical method infers an average response over the population and takes into account the between-subjects effect to prevent overestimation of standard errors for the time-dependent predictors due to repeated measurements [ 30].

The results confirmed BMI and interest in food as baseline predictors for weight loss, as well as decreases in cravings for carbohydrates and/or hunger as time-dependent predictors for weight loss.

Virologic suppression and change in plasma ANG-2 (for the ANG-1 outcome) or change in plasma ANG-1 (for the ANG-2 outcome) were included a priori in both models as time-dependent predictors, to evaluate the relationship with plasma HIV-1 RNA and because the angiopoietins are competitors at the Tie2 receptor, respectively.