Although simpler models and modeling tasks will be illustrated using warfarin pharmacokinetic pharmacodynamic models, more complex models involving integrated physiological systems, disease progression, categorical and time-to-event data, and multilevel random effects models will be illustrated in the oncology, diabetes, and Alzheimer's disease areas.
Small area prediction models will require a multilevel approach, not attempted here, because obtaining predictions from multilevel random effects models is not straightforward and requires active statistical development.
To identify the potential determinants and trajectories of the distances between ex-partners with shared children, detailed geocoded data from the British Household Panel Survey (BHPS) are combined with longitudinal multilevel random effects models.
Person-level and county-level contextual variables were included in multilevel random intercepts models to understand predictors of CRC test modality, stratified by insurance type.
In weighted multilevel random effects models, between-school variability in dating violence victimization was proportionately small but substantive: 10% for male victimization and 5% for female victimization.
Multilevel random effects models demonstrated that those who practiced more had greater improvements.
We used multilevel random coefficient models to assess the extent to which residual sociodemographic inequalities within practices varied between practices.
Multilevel random effects models (MRMs) will also be used to account for correlated data (dialysis center clustering and serial measurement).
First, we investigated whether the use of inverse population weights accounted for possible correlation among observations from the same tax parcel by running multilevel random intercept models designating the parcel as the grouping variable.
The degree of attenuation of the odds or rate ratios of referral by age, sex, or social deprivation in the multilevel random intercept models indicated the extent to which inequalities in sociodemography may be explained by differences in the overall levels of referral between practices.
