. 2017 Jan 24;7:41222. doi: 10.1038/srep41222

Table 1. Means (M) and standard deviations (SD) of demographic, clinical and psychological characteristics of the patients with Parkinson’s disease (PD) and healthy controls (HC).

measure	max	HC (N = 13)		PD (N = 13)
measure	max	M	SD	M	SD
age [years]		63.15	11.15	64.31	8.66
education [years]		13.65	3.24	13.04^a	3.82
MoCA (cognitive status)	30	28.23	1.83	26.38	1.76
WST (premorbid intelligence)	42	29.69	4.03	29.15	4.41
AES (apathy)	54	10.23	7.94	16.15	6.62
BDI-II (depression)	63	6.31	6.36	8.85	7.56
BSI-18 (psychiatric status)	72	5.25^a	5.74	11.27^b	10.84
anxiety	24	1.50^a	1.62	4.09^b	3.70
depression	24	1.67^a	2.19	3.55^b	4.76
somatization	24	2.08^a	2.75	3.64^b	3.47
SF-36 (health status)	100	72.34^a	21.15	56.59^b	22.25
physical functioning	100	76.67^a	26.14	45.91^b	31.53
physical role functioning	100	56.25^a	47.82	47.73^b	39.46
bodily pain	100	72.42^a	25.05	57.00^b	36.21
general health perception	100	62.25^a	25.35	51.09^b	23.11
vitality	100	65.00^a	21.74	52.73^b	19.67
social role functioning	100	86.46^a	15.50	69.32^b	20.44
emotional role functioning	100	83.33^a	33.33	69.70^b	45.84
mental health	100	76.33^a	16.22	59.27^b	22.19
BIS-Brief (impulsiveness)	32	14.62	3.31	15.03	4.06
DII (impulsivity)
functional	11	6.15	3.00	5.23	2.55
dysfunctional	12	2.15	2.19	3.00	3.65
QUIP-RS (impulse control)	112	0.09^b	0.30	9.83^a	11.10
impulse control disorder	64	0.08	0.28	5.33^a	5.63
SPQ (schizotypal traits)	22	5.33^a	4.42	5.83^a	4.93
interpersonal	8	3.25^a	3.02	2.75^a	2.26
cognitive-perceptual	8	1.00^a	0.85	1.33^a	1.30
disorganized	6	1.08^a	1.24	1.75^a	2.30

Note. max = maximal value of the respective measure; MoCA = Montreal Cognitive Assessment²²; WST = Wortschatztest²⁷; AES = Apathy Evaluation Scale⁶³; BDI-II = Beck Depression Inventory-II⁶⁴; BSI-18 = Brief Symptom Inventory (18-item version)⁶⁵; SF-36 = Short Form Health Survey⁶⁶; BIS-Brief = Barratt Impulsiveness Scale (8-item version)⁶⁷; DII = Dickman Impulsivity Inventory⁶⁸; QUIP-RS = Questionnaire for Impulsive-Compulsive Disorders in Parkinson’s Disease—Rating Scale⁶⁹; SPQ = Schizotypal Personality Questionnaire⁷⁰.

^aBased on n = 12.

^bBased on n = 11.