The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 3 Bivariable correlation between cognitive functions and disease parameters in the patients’ group

From: Optical coherence tomography and cognitive dysfunction in Parkinson disease

		Montreal cognitive scale
		r value	P value
Age		− 0.46	0.04*
Duration of illness		− 0.45	0.04*
Severity of disease		− 0.82	< 0.001**
OCT	Superior	0.59	< 0.001**
	Inferior	0.054	0.74
	Nasal	0.09	0.6
	Temporal	0.18	0.26
	Mean	0.29	0.064

OCT optical coherence tomography
* significant difference
** highly significant difference

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