Parkinson’s Disease Gravity Index: A Method by means of Optimal Scaling

Table 5

Acceptability data of the variables of the Parkinson’s Disease Gravity Index.

	Min	Max	Median	Mean	SD	Floor	Ceiling	Skewness	Kurtosis
AD	0	9.69	3.49	5.09	2.75	6.66	4.16	0.24	−0.8
MD	0	9.14	3.24	3.8	2.76	10	8.33	0.42	−0.98
DD	0	10.51	4.88	4.24	2.85	6.66	5	0.51	−0.53
AxD	0	9.66	1.92	3.38	2.76	9.16	4.16	0.81	−0.5
CD	0	9.22	6.5	5.69	2.69	2.5	3.33	−0.47	−1.22
ApD	0	7.52	2.47	3.32	2.76	27.5	7.5	0.18	−1.34
FD	0	10.21	3.57	3.65	2.75	20.83	2.5	0.22	−0.79
NMD	0	8.67	2.09	3.53	2.72	21.66	0.83	0.2	−1.3
PsD	0	12.54	0	1.87	2.78	61.66	2.5	1.69	3.39
SD	0	12.84	4.17	4.17	2.76	15.83	1.66	0.16	−0.04
Total	12.65	77.65	36.92	38.71	14.5	0.83	1.66	0.38	−0.35

AD: age dimension; MD: motor dimension; DD: depression dimension; AxD: anxiety dimension; CD: cognitive dimension; ApD: apathy dimension; FD: fatigue dimension; NMD: nonmotor dimension; PsD: psychosis dimension; SD: sleep dimension.