At present, no widely accepted framework or construct for education and training in this specialty exists.
When I first heard about Candler's Certificate of Theological Studies, I thought that someone had really lost it to try and construct theological education in a prison.
Due to the greater detail in answering options a new time-invariant variable for education was constructed using the educational level in 2012 as a base, but imputations from 2009 to 2007 were used when answers were missing.
To address this we constructed four categories for education of mother: no education, primary education, lower secondary education, and upper secondary and higher education.
A dummy variable was constructed 0= lower education (including the original categories 0 and 1) and 1= at least primary education (including the original categories 2, 3, 4 and 5).
We constructed the maternal education variable using data on the number of years of schooling with the following categories: no education (0 years of schooling), primary education (1 5 years), secondary education (6 12 years) and greater than secondary (>12 years of education).
If both parents were alive, we chose the higher level of education of the two as a proxy of parents' education, then constructed a dummy variable with two values: 1 = high education and 0 = low education, with the sample mean (3.97 years) as the dividing point.
Finally, a binary indicator of completed maternal education was constructed comparing those who had completed upper secondary or higher education with those with only primary or lower secondary education.
Under the premise of an overall better educated community positively affecting child health, the "community education" variable was constructed as the average of mothers' education in a community.
A group variable on parental education was constructed from two dummy variables (0/1) on father's and mother's highest level of education.
