Respiratory modulation of cardiac vagal tone in Lyme disease

Table 1 Main findings

	Lyme disease patients n = 18 mean (standard error)	Controls n = 18 mean (standard error)	P-value
Age, yr	35.6 (3.7)	44.7 (3.9)	0.10
Sex	7 males, 11 females	7 males, 11 females	1.00
Body mass	25.0 (1.2) kg	24.6 (0.80) kg	0.44
Arterial blood pressure	74.1 (3.9) mmHg	66.9 (4.4) mmHg	0.23
Resting cardiac rate	72.0 (3.1) min-1	63.7 (4.5) min-1	0.14
Resting cardiac vagal tone	4.7 (0.8)	5.7 (1.1)	0.46
Maximum cardiac vagal tone during deep breathing	11.2 (1.3)	16.5 (1.7)	0.02