Table 2.

Characteristics of the patients who participated in the sleep rhythm evaluation study in Parkinson's disease.

	PD	Controls	P
	Mean ± SEM	Mean ± SEM
Age (years)	65.53 ± 2.19	60.71 ± 1.97	0.10
Gender (M/F)	12/3	12/3	1.00
Weight (kg)	77.64 ± 2.09	79.43 ± 3.03	0.56
Height (cm)	170.43 ± 1.78	175.29 ± 2.34	0.11
BMI	26.71 ± 0.56	25.77 ± 0.69	0.37
PD progression (years)	11.27 ± 1.49

Mean values ± standard error of the means (SEM). The differences between means were evaluated using a Student's t-test, with values being considered significant at p < 0.05. BMI, body mass index.