Table 2 —

Family characteristics in type 1 diabetic patients with islet antibodies in the DISS 1992-1993 patient-control study with regard to heredity, parental age, number of siblings, and immigrants

Family characteristics at diagnosisDiabetic patientsControl subjectsP
 First degree relatives with diabetes17.67.50.001
Parental age (years)
 Father’s age at birth31.3 ± 6.130.7 ± 6.20.22
 Mother’s age at birth28.2 ± 5.428.1 ± 5.20.90
Number of siblings
Proportion of immigrants
 Fathers of mothers9.416.00.007
 Father of fathers11.917.20.047
  • Data are % or means ± SD.