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Table 1 Characteristics of the human samples

From: Advanced paternal age as a risk factor for neurodevelopmental disorders: a translational study

VariableMean (SD)
Main cohort (N = 677)
Sex ratio (men/women)365/312
Age26.02 (7.1)
Estimated verbal IQ111.99 (12.24)
Years of education15.87 (2.87)
Father’s age31.34 (5.54)
Mother’s age28.45 (4.87)
Personality
 SPQ-B
  Cognitive-perceptual deficits1.31 (1.38)
  Interpersonal deficits2.02 (1.79)
  Disorganization1.22 (1.43)
  SPQ-B total score4.56 (3.36)
 NEO-FFI
  Neuroticism1.43 (.63)
  Extraversion2.26 (.51)
  Openness2.49 (.63)
  Agreeableness2.48 (.67)
  Conscientiousness2.59 (.58)
Cognition
d2 test (KL, attention)192.7 (37.8)
MWT-B (brief verbal IQ)30.2 (3.3)
Trail-making-test28.2 (12.6)
Semantic verbal fluency25.9 (5.4)
Lexical verbal fluency14.4 (5.1)
Letter-number-span16.6 (2.6)
Symbol coding66.2 (11.2)
Spatial span18.9 (3.1)
 VLMT
  Learning58.6 (7.6)
  Delayed recall12.6 (2.3)
VBM sample (N = 342)
Sex ratio (men/women)198/144
Age27.53 (7.90)
Estimated verbal IQ115.27 (12.21)
Years of education13.83 (2.73)
Father’s age30.67 (5.27)
Mother’s age28.09 (4.86)
DTI sample (N = 222)
Sex ratio (men/women)126/96
Age26.11 (4.87)
Estimated verbal IQ114.9 (11.82)
Father’s age30.56 (5.53)
Mother’s age28.08 (4.92)