Table 1.

Sociodemographic characteristics of the subjects.

Variables	PD cases (n = 26)	Control Cases (n = 24)	P-value
Age (years)	60.35 ± 11.5	60.22 ± 9.2	0.9769 NS
Sex	20 M / 6 F	18 M / 6 F
Duration of disease (years)	6.23 ± 4.5	NA
Vitamin D Supplement use
Yes	16	6
No	10	18
Sun exposure
Yes	3	4
No	23	20
Family history of PD (first degree)
Yes	9	0
No	17	24
Laboratory parameters
Vitamin D (25-Hydroxyvitamin D)(nmol∖l)	58.7 ± 12.8	156.9 ± 13.7	0.0001
Calcium levels (mg∖dl)	8 ± 0.0	9.2 ± 0.22	0.0253
Phosphorus levels (mg∖dl)	2.6 ± 0.1	3.4 ± 0.29	0.0561

M, male; F, female; NA, not applicable; NS, not significant. Data are expressed as mean ± standard deviation.