Median and Ulnar Neuropathy Assessment in Parkinson’s Disease regarding Symptom Severity and Asymmetry

Table 5

The statistical comparison of mean indices of median and ulnar nerve electrophysiologic parameters at the wrist level between mild and severe patient groups and controls.

Variables	Disease duration (years)		⁢Hoehn & Yahr score		Rigidity		Tremor
	Shorter than 6 years	Longer than 6 years	Mild	Severe	Mild	Severe	Mild	Severe
m-dml
R	NS	0.002	0.041	NS	0.007	NS	0.003	0.003
L	NS	0.001	0.002	0.002	0.001	0.001	0.002	NS
m-amp
R	NS	NS	NS	0.041	NS	NS	NS	NS
L	NS	NS	NS	NS	NS	NS	NS	NS
m-ncv
R	NS	NS	NS	0.035	NS	NS	NS	NS
L	NS	NS	NS	NS	NS	NS	NS	NS
u-dml
R	NS	0.037	NS	NS	NS	0.049	NS	NS
L	NS	0.008	NS	0.025	0.034	NS	NS	0.011
u-amp
R	0.031	0.031	NS	NS	NS	NS	NS	NS
L	NS	NS	NS	NS	NS	NS	NS	NS
u-ncv
R	NS	NS	NS	NS	NS	NS	NS	NS
L	NS	NS	NS	NS	NS	NS	NS	NS

m: median; dml: distal motor latency; amp: amplitude; ncv: nerve conduction velocity; u: ulnar; NS: not significant; R: right; L: left.