Table 1.

Descriptive statistics for parents across the three samples

ParentStatusGeneration ScotlandUK BiobankEstonian Biobank
nMean age, y (SD)nMean age, y (SD)nMean age, y (SD)
MotherAlive10,34064.4 (12.5)45,33378.4 (8.1)3,24763.0 (13.2)
Dead6,33073.3 (12.5)69,99074.9 (12.1)2,68273.5 (12.7)
FatherAlive7,92362.9 (11.5)25,91577.9 (7.3)2,32760.9 (11.9)
Dead8,46769.7 (11.9)85,41971.3 (11.7)3,74468.1 (12.9)