Table 3. Pearson correlation between the scores of different motor, psychiatric, fatigue and quality of life (PDQ-39) scales and nutritional status (MNA) in Parkinson’s disease (PD) patients.

Scale	Domains	Correlation Index	MNA (Total)
PDQ39	Mobility	Spearman R	−.590**
		P-value	<.001
	Activities of daily living (ADL)	Spearman R	−.450**
		P-value	<.001
	Emotional well-being	Spearman R	−.461**
		P-value	<.001
	Stigma	Spearman R	−.027
		P-value	.744
	Social support	Spearman R	−.246**
		P-value	.005
	Cognitive impairment (Cognition)	Spearman R	−.320**
		P-value	<.001
	Communication	Spearman R	−.414**
		P-value	<.001
	Bodily discomfort	Spearman R	−.451**
		P-value	<.001
Disease Severity	UPDRS Part I-mental	Spearman R	−.503**
		P-value	<.001
	UPDRS Part II-ADL	Spearman R	−.518**
		P-value	<.001
	UPDRS Part III-motor	Spearman R	−.473**
		P-value	<.001
	UPDRS Part IV-complications	Spearman R	−.336**
		P-value	<.001
	UPDRS Total	Spearman R	−.613**
		P-value	<.001
	Hoehn & Yahr stage	Spearman R	−.414**
		P-value	<.001
	Schwab & England stage	Spearman R	.492**
		P-value	<.001
HADS	Anxiety	Spearman R	−.369**
		P-value	<.001
	Depression	Spearman R	−.577**
		P-value	<.001
FSS	Fatigue	Spearman R	−.413**
		P-value	<.001

**Correlation is significant at the 0.01 level (2-tailed).

*Correlation is significant at the 0.05 level (2-tailed).