If the Ga-terminated GaN 0001) surface is inclined towards the 〈 1 1 ̄ 00 〉 direction, two types of steps appear alternatively, and to model an inclined GaN 0001) surface by using the repeated slab model, we have to include two steps in a unit cell.
Using the repeated measures model methodology [ 20, 21] allowed us to use more data points, since each covariate was updated at the different time points, and it gave us more power and a more robust estimation of the effect of gender on outcome than using baseline covariates would have done.
If no significant interaction between group and time point was detected, between-group comparisons were performed overall using the repeated ANOVA model; otherwise, between-group comparisons were performed at each time point.
We observed a strong positive association between PB and BM WT1 expression levels using the repeated measures regression model (standardized coefficient = 0.9311, p<0.0001).
In fact, vaginal testing of tenofovir gel, using the repeated low dose challenge model, predicted its activity in humans [5], [8].
The MCQ results were analysed using the repeated measures General Linear Model, two-tailed t-test, Pearson correlation test and descriptive statistics.
Reported Echo indices were analyzed using the repeated measures Linear Mixed-Effects model.
In age-adjusted models using the repeated measures, higher blood lead was significantly associated with the high-risk categories for total cholesterol, hs-CRP, and TNF-R2 and the low-risk category for HDL (Table 4).
Changes in pain measurements over time and across treatment groups were compared using the repeated-measures ANOVA model.
Estimated (or predicted) means were calculated for each end point and for each treatment, as estimated using the repeated-measures mixed-effects model (MM), controlling for time, treatment, country, treatment-by-time, and treatment-by-country interactions, and baseline (cycle 1, day 1) score (Fairclough, 2002; Singer and Willett, 2003; Fitzmaurice et al, 2004).
