But the fully implicit method calculates the main variables at the same time (all primary variables at the new time level are determined simultaneously), the IMPES method solves pressure equations at the new time level by using saturation equations at the old time level, then the pressure equations at the new time level are solved to calculate the saturations at the new time level explicitly.
No significant changes were observed due to oversampling in the main variables at the aggregate level.
Ending data collection after the first postal reminder would have produced the same results for the main variables, at the same time 72% of the respondents would have been secured.
Respectively, the main variables at individual level were: [ 1] gender; [ 2] age; [ 3] countonnt on entering a CAG; [ 4] ART initiation-date; [ 5] CAG entry-date; [ 6] treatment outcomes; and at group level: [ 1] groups with smooth rotation system to collect drugs; [ 2] groups sharing transport fees; [ 3] number of members per CAG; [ 4] type of clinic to which groups are linked.
Missing data of the main variables at baseline are noted in brackets as follows: MDRD equation (0%), blood pressure (0%), triglycerides (3%), HDL-c (7.1%), LDL-c (7.1%), HbA1c in diabetics (15%), hemoglobin (0%), serum ferritin (7.4%), TSAT (31%), calcium (2%), phosphorus (2%), and i-PTH (12.7%).
Such studies include a predictor as well as a main variable measured at least twice.
> -wrap-foot> > -wrap-foot> Ashownwn in Table 7, age >55 years was the main variable related to death at 3 Months, whereas a higher haemoglobin level at Month 0 and the use of ESAs reduced the risk.
The main variable of interest was dependency at 28 days, which was measured as a proxy of need.
Because the main variable of interest was the rate at which helping spread due to mating strategy, back mutations were not relevant and, therefore, were not considered in the simulations.
