Selected socio-demographic factors were studied in a follow-up of 142 schizophrenic patients who had been hospitalized for the first time during adolescence (at the age of 13-18 years). The follow-up was conducted 23 years after that juvenile hospitalization. Four variables were analyzed: sex, age, education and marital status. The study revealed earlier age of onset in boys and a positive relationship between male sex and unmarried status at follow-up. No changes were found in education at follow-up in patients with early-onset schizophrenia.