All variables were determined in three contiguous microscopic regions, and the mean calculated to diminish variability.
This results in retention of vasoreactivity within the placental vascular bed which causes diminished and variable perfusion to the intervillous space [4] [6].
By adding control variables to the model, we aimed to control unit-specific changes between the periods and the results from model 2 (Table 5) show that the reform indeed had a negative and statistically significant effect on quality, and the use of the control variables diminished the difference between the two groups as the difference was no longer statistically significant.
Missing data in various variables diminished the number of subjects in the logistic regression from 1888 to 1331 (70.5%).
Controlling for the other variables diminished the effect of education and wealth to only a modest extent.
The effects of all variables diminished in the multi-indicator model (i.e. with adjustment for all indicators of marginalization), though most remained statistically significant with odds ratios in the range of 1.30 to 2.81, among those which remained statistically significant.
Table 2 Assessment of the theoretical basis for assuming diminishing returns Variable Theoretical basis for diminishing returns?
However, the factor of the latest month when annual flooding could start in a normal year was non-significant (p = 0.200), but dropping this variable diminished the performance of the model.
When the variable of time elapsed since the last dentist appointment was inserted, representing the characteristics of the healthcare services, this variable diminished in statistical significance.
They found uptake in south Asian women to be 69.5%, compared with 73% in other women, although the differences diminished once area-level variables (deprivation, transience, social isolation) and practice-level variables (practice workload, structure and GP characteristics) were controlled.
The value of ER status as an independent prognostic variable is diminished by its association with other established indicators of favorable prognosis.
