Using PCA, an index of five relative ordinal categories (lowest, lower, middle, higher, and highest) was generated.
Parental social status was defined as lower, intermediate or upper according to the total score of a composite social status index integrating the parents' level of education (primary, middle, higher and other), household income (<1500 €, 1500 - <2250 €, 2250 - <3000 €, and > =3000 €) and profession [ 40].
Survey the landscape of this season and you see that all of culture's many brows — middle, high, and low — come together here.
Demographic controls included sex, age, learning phases (middle high and college) and parents' marital status.
Abundances of the transcribed genes were arbitrarily divided into 4 classes: 'Low', 'Middle', 'High' and 'Very high'.
Subsequently, responders were categorised into quintiles in the ascending order of lowest, middle low, middle, middle high, and highest SES (25).
Wealth index was categorised into quintiles in ascending order of lowest, middle low, middle, middle high, and highest socio-economic status.
This information was used to determine the distribution of family incomes in Sweden, categorised into quartiles (low, middle low, middle high, and high income).
vii) Family wealth index was generated using household materials, monthly salary and household assets, and categorized into quintiles as: lowest, low, middle, high and highest.
The MED index has a higher degree of correlation with the areas of Kenya with high, middle-high, and very low income, than with areas middle-low income.
Finally, as for perceived social class, four categories were included: low, middle-low, middle-high, and high.
