To assess whether a potential confounder actually confounded the association of driver licensing policies with fatal crash involvement rates of older drivers, models were estimated with and without each potential confounder; the confounder was retained if the RRR for any licensing policy differed by 10% or more in the reduced model relative to its value in the full model, otherwise it was removed.
Why put myself through it?' But actually someone has to keep doing it and try and be a role model, otherwise it will just die.
A photo is only essential for jobs such as acting and modelling, otherwise it is a matter of choice.
If so, it is incorporated into the model; otherwise, it is deleted to ensure the most precise simplified system equation.
If removing a variable reduces the r-square at α = 0.10, then it is retained in the present model; otherwise, it is removed.
When a gas releases, the opening percentage of the valve is set by discharge calculation in the discharge model; otherwise, it is set to be zero at the normal operation.
If the maximum number of iterations is reached or the fitness value is smaller than a specified value, the optimization stops, and the particle with the smallest fitness value is taken as the estimated parameter for the equivalent model; otherwise, it goes to Step 4. Step 4: Updating velocities and positions.
During the follow-up period, if the quitter smoked again, it was defined as one event in the model; otherwise it was regarded as the censor.
If relevant differences are found between the derivation and validation cohorts, a cohort-specific intercept and/or interaction term may be included in the final model; otherwise, it will maintain the same risk factors and form as the derivation model.
Any patient with RiskScore value greater than this threshold is considered as high-risk of bone metastasis by this sub-model, otherwise it is considered as low-risk of bone metastasis.
