Table 2

Educational attainment of patients, compared to the general Dutch population and our control group

Patients (%) n=126Dutch population (%)* n=4789000Controls§ (%) n=36†
*Dutch population 20–40 years of age: data from the Dutch National Bureau of Statistics (Centraal Bureau voor de Statistiek:; †data from Uterwijk13; ‡see text for details on schooling system; §difference patients–controls Mann–Whitney test, p=0.001.
Basic school and low vocational training‡
Intermediate vocational training‡31.747.047.2
High vocational training‡11.125.925.0