It was noticed that the mean score for QOL was the least for the lowest age category, it increased to the highest in the primary school age category, then during the adolescence (> 12 years) it worsens again.
Among traditional birth attendants, more than 90% fell in the illiterate and incomplete primary school education categories.
§Reference category is no education or primary school; ╪ Reference category is Domestic worker/farmer/labourer. *=p<0.05 *=p<0.051.
The two first categories were collapsed into one category, primary school (grades 1 9).
Finally, the fourth section of the questionnaire included all variables concerning the socioeconomic features of the interviewee, such as age, gender, education (divided into four categories: primary school, lower secondary school, upper secondary school, university degree or higher), number of household members, and monthly household net income in euros.
Level of education was measured with the three categories: "primary school", "high school" and "college/university".
Education level was specified in three categories: "primary school", "high-school" and "university/college of four years or more".
Highest educational achievement (1990-2004) walsolso based on seven categories: primary school (<9 years), primary school (9-10 yearsecondarydary school (≤12 years), full secondary education, university (<3 years), university (≥3 years), and PhD studies.
Educational level was obtained from the question "How many years have you been in school?" In the present logistic regression analysis, we classified answers into two categories: primary school and below (<6 years) and junior school and above (≥6 years).
Level of the parental education was reported in three categories (primary school, secondary school and college/university), while household economy was rated as good, medium or poor by the parents.
