Table 3

Intrapair differences (Mann-Whitney U test) of personality traits (FPI-R), depression (D-S), and state of health (Bf-S) in six monozygotic (MZ) and nine dizygotic (DZ) twin pairs discordant for idiopathic Parkinson’s disease

MZ (n=6)DZ (n=9)p Value
FPI-R:
 Life satisfaction4.7 (3.8)3.1 (1.5)0.53
 Social orientation0.5 (0.6)3.2 (2.0)0.001
 Achievement orientation2.7 (2.7)4.6 (2.8)0.18
 Inhibitedness3.8 (3.4)4.6 (2.9)0.69
 Impulsiveness1.7 (1.6)3.9 (2.0)0.05
 Aggressiveness1.3 (1.2)2.7 (2.3)0.33
 Strain1.7 (2.4)3.4 (1.2)0.09
 Somatic complaints2.5 (2.9)3.4 (1.7)0.22
 Health concern2.2 (2.3)3.3 (2.4)0.39
 Frankness2.0 (2.0)2.4 (2.1)0.69
 Extraversion3.5 (4.2)3.7 (3.0)0.86
 Emotionally4.0 (4.3)4.1 (2.5)0.61
D-S:
 Depression12.0 (11.7)6.4 (5.1)0.53
Bf-S:
 State of health24.5 (20.7)8.0 (9.7)0.11
  • Raw values are means (SD).