Sentence examples for using a constant baseline from inspiring English sources

For this reason, our Bayesian model is currently restricted to joint models for which the longitudinal process is specified by a linear mixed-effects model, so that m i (t)=β11+β12 t+ U1 i + U2 i t while the hazard for the time-to-event process is modelled using a constant baseline hazard.

Results from the Classical time-dependent (C-TD), Classical two-stage (C-2S), Classical shared random effects (C-SRE), and Bayesian shared random effects (B-SRE) models, each using a constant baseline hazard, are shown in Table 4, where either an individual's rate of growth or current diameter were used as the explanatory variable in the survival sub-model.

Age is clearly a factor that changes with time, but it is usually used as a constant baseline age factor for the hazard, and a separate time function (e.g., Gompertz baseline hazard) is used to describe how the hazard changes after adjusting for baseline age.

Bianchi et al. [ 19], using a constant calcitriol dosage of 0.25 and 500 mg/day of calcium carbonate noted an increment of serum Ca levels from a baseline value of 8.5 ± 0.3 to 9.9 ± 0.2 mg/dL.

Initial analysis was conducted using a constant comparative approach [ 18].

Past research also indicates that use of a constant baseline throughout the damage assessment process undermines the potential of the Modal Strain Energy based Damage Index (MSEDI).

The WinBUGS code used to implement a constant baseline hazard joint model with linear longitudinal process is given as Supporting Information on the journal website.

The wavelength was measured using a constant-deviation-spectrometer (Hilger Watts).

At the first step of our strategy, it was obvious to use a constant hazard ratio of the baseline hazards of distant metastasis event to that of local recurrence event, while a cubic regression spline with one knot at one year was used to model the time-dependent HR of the death event to that of local recurrence event.

A slow rising temperature was observed after a ~13-h period of a constant baseline temperature.

This functional form assumes a constant baseline hazard (s_{0}^{nu }(t)) over time.