TABLE 2.

Correlations between plasma BDNF levels and clinical data in HD patients and control subjects.

	Age	CAG	HADS	TFC	MMSE	MOTOR
HD
Pearson r	0.1945	−0.04949	0.0619	−0.1804	−0.09626	0.2247
95% confidence interval	−0.09404 to 0.4529	−0.3310 to 0.2401	−0.2677 to 0.3786	−0.4412 to 0.1085	−0.3722 to 0.1953	−0.06263 to 0.4777
P value (two−tailed)	0.1714	0.7329	0.7081	0.2053	0.5061	0.1129
P value summary	ns	ns	ns	ns	ns	ns
NC
Pearson r	0.500	NA	−0.094	NA	NA	NA
95% confidence interval	0.1142 to 0.6920	NA	−0.5618 to 0.4235	NA	NA	NA
P value (two-tailed)	0.006	NA	0.736	NA	NA	NA
P value summary	∗∗	NA	ns	NA	NA	NA

NC, normal controls; HD patients included premanifest (PM) and manifest HD patients; HADS, Hospital Anxiety and Depression Scale; TFC, Total Functional Capacity; MMSE, Mini-Mental State Examination; MOTOR, the Unified Huntington’s Disease Rating Scale Motor component. Bold lettering denotes significant p values. ^∗∗P = 0.006.