The quantitativetokenof the residualage index of DDT in soils was primarilydiscussed, and the normalized residual timeindex (NRTI) of DDT was designed asone of the methods.
They found the age range for heart attacks in men where the index finger was relatively long was 35 to 80 years of age, but in those with relatively long ring fingers it was 58 to 80.
The index takes into account many different types of diversity including gender, age, ethnicity, disability, country of birth, skills and education, number of hours worked, language, and sectoral and geographical distribution.