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We used fixed effects regressions to estimate effects of time dependent variables on BMI, and overweight or obesity, respectively.
We used fixed effects (FE) regressions [ 7] to estimate effects of time dependent variables on BMI, and overweight or obesity, respectively.
This paper presents the applicability of particle filter to identify the unknown vehicle parameters and provides an estimate of time-dependent moving load on the bridge.
Standard survival analyses may give biased estimates in the presence of time dependent confounders.[53] All 15 studies controlled in their overall analyses for baseline values of CD4 cell count.
Missing these cases has the potential to bias estimates of time-dependent exposures.
A simulation study showed that the WC model improved the accuracy of the regression parameters estimates of time-dependent exposure variables as compared with standard logistic regression with fixed-in-time covariates [ 4].
A test for proportional hazards using the Schoenfeld residuals was performed, and for covariates indicating evidence of non-proportionality, spline smooth estimates of time-dependent hazard ratios (HRs) with point-wise confidence bands were calculated [ 32].
Other pregnancies with exposures during this period could not be included in the study because the births occurred before January 2001, thus having the potential to bias the estimates of time-dependent exposures such as air pollution.
The curing time dependence of conversion was estimated from time dependent heat flow measurements during isothermal curing.
A weighted Cox (WC) model has been proposed to estimate the effects of time-dependent exposures.
A time-dependent weighted Cox (WC) model has recently been proposed to incorporate this dynamic information on exposure, in order to more accurately estimate the effect of time-dependent exposures in population-based case-control studies [ 4].
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