Table 1.

Sample Characteristics by Time of Measurement

	Baseline	Follow-Up	r	d [95% CI]
Age, mean years (SD)	15.52 (2.11)	15.72 (2.12)	.999	2.12 [1.12; 3.12]
Caucasian, n (%)	8 (66.67)
Female, n (%)	8 (66.67)
Right handed, n (%)	12 (100.00)
Height, mean inch (SD)	65.77 (3.20)
Weight, mean pounds (SD)	162.36 (51.09)
CDRS (T score), mean (SD)	74.39 (8.35)
HR, mean bpm (SD)	70.91 (8.10)	67.27 (11.48)	.013	−.32 [−1.13; .49]
RMSSD, mean ms (SD)	58.40 (12.26)	68.29 (17.51)	.086	.60 [−.22; 1.41]
HF-HRV, mean ms² (SD)	1049.88 (374.15)	1506.32 (697.54)	.232	.98 [.14; 1.83]
BDI, mean (SD)	31.08(10.69)	14.09 (15.86)	.261	−1.31 [−2.23; −.39]

Notes: missing BDI data at Follow-Up for n = 1 patient; missing CDRS data at Baseline for n = 3 patients; case-wise data presented; d [95%CI]: Cohen’s d corrected for dependence among means