Table 1.

Demographic variables

Variables	Total sample, n = 272
Mean Age	70.5 ± 4.12 months
Sex
Girls	46%
Boys	54%
Mother’s education
Primary school (9 years)	1 (0.5%)
High school (11 years)	2 (1%)
Bachelor’s degree	34 (16.7%)
Master’s degree	147 (72.4%)
PhD	19 (9.4%)
Not reported	69
Family income level
Below average	1 (0.5%)
Average	155 (77.1%)
Above average	45 (22.4%)
Not reported	71