Table 1.

Baseline characteristics, hemodynamics, and sympathetic activity

Age, yr	58.7 ± 1.4
Body mass index, kg/m2	32.4 ± 1.4
Systolic BP, mmHg	132 ± 4
Diastolic BP, mmHg	81 ± 3
Mean arterial pressure, mmHg	98 ± 3
Heart rate, beats/min	59 ± 3
Respiratory rate, breaths/min	17.0 ± 0.4
Mean number of BP medications	2.4 ± 0.3
Serum Creatinine, mg/dl	1.66 ± 0.08
eGFR, ml·min−1·1.73 m−2	46 ± 1.5
Urinary microalbumin:creatinine, mg/g	158.6 ± 54.8
Current smoker	3/15
Comorbid posttraumatic stress disorder	1/15
MSNA, bursts/min	40.0 ± 3.5
MSNA, bursts/100 heartbeats	68.2 ± 4.5
MSNA, arbitrary units/min	175.7 ± 37.0

Data are expressed as means ± SE, or number of participants with that condition out of 15 total participants. Baseline measurements in study participants. BP, blood pressure; MSNA, muscle sympathetic nerve activity. Estimated glomerular filtration rate (eGFR) was quantified using the 4-variable modified Modified Diet in Renal Disease (MDRD) equation (34).