Personality domain ICD  (n = 34) Apathy (n = 24) PD-control (n = 36) ANOVA (F; p)
Current self-rated domains Mean (SD)
Neuroticism 57.03 (11.71) 55.22 (14.03) 48.1 (11.00) 5.24; .007  ## †(trend)
Extraversion 49.41 (12.80) 42.07 (9.44) 47.71 (11.50) 3.08; .04
Openness 53.10 (10.84) 43.61 (11.65) 49.76 (10.40) 5.47; .004 ‡‡
Agreeableness 44.84 (8.81) 54.01 (9.52) 53.12 (12.50) 7.42; .005 ##‡‡
Conscientiousness 45.14 (12.60) 48.23 (12.90) 52.20 (11.62) 2.95; .06 #
Current informant-rated domains Mean (SD)
Neuroticism 62.80 (12.23) 60.57 (10.62) 55.48 (11.45) 2.04; .14
Extraversion 39.80 (10.80) 35.71 (10.31) 42.65 (13.95) 1.42; .25
Openness   47.60 (8.14)   41.64 (10.43)   45.04 (10.22) 1.39; .26
Agreeableness 46.33 (13.68) 52.07 (5.17) 51.09 (12.99) 1.06; .36
Conscientiousness 39.87 (13.20) 38.21 (14.43) 47.09 (12.86) 2.26; .12
Pre-morbid informant-rated domains Mean (SD)
Neuroticism 45.53 (9.16) 47.57 (8.09) 44.77 (10.41) 0.38; .69
Extraversion 58.13 (12.28) 53.00 (7.50) 56.41 (13.52) 0.71; .50
Openness 47.07 (9.52) 44.14 (9.67) 45.63 (10.44) 0.31; .73
Agreeableness 50.20 (12.39) 52.21 (7.88) 52.05 (11.97) 0.16; .86
Conscientiousness 53.87 (12.24) 54.64 (6.96) 53.91 (12.17) 0.24; .98
Table 2: Comparison of self- and informant-rated NEO-FFI domain scores in the three PD behavioural groups; current and pre-morbid assessments