Table 1. Baseline Characteristics
(n=33)
Age, y26.3±0.9
Sex (M/F)13/20
BMI, kg/m222.9±0.6
Ethnicity
Black5
Asian8
Hispanic5
White (non‐Hispanic)15
Former tobacco smoker3
Former e‐cigarette user 0
SBP, mm Hg113.3±2.2
DBP, mm Hg71.7±1.5
MAP, mm Hg85.6±1.6
HR, bpm67.5±2.0
HF, nu55.3±2.6
LF, nu43.4±2.8
LF/HF0.95±0.63
PON‐1 activity, nmol p‐nitrophenol/min/mL754.3±78.9
LDL‐oxidizability (units)a2846.0±375.9
HOI (units)a0.362±0.041
Fibrinogen, mg/dL254.8±11.0
  • Values are means±SEM. BMI indicates body mass index; bpm, beats per minute; DBP, diastolic blood pressure; HF, high frequency; HOI, high‐density lipoprotein antioxidant index; HR, heart rate; LDL, low‐density lipoprotein; LF, low frequency; MAP, mean arterial pressure; nu, normalized units; PON‐1 activity, paraoxonase‐1 activity; SBP, systolic blood pressure.

  • a Includes only subjects who used the cigalike device (n=14).