Table 1 Basic characteristics and the outcome measures of the sixteen study participants, Mexico City Metropolitan Area, February 2002
Demographics | n(%) | ||
|---|---|---|---|
Male | 11 (68.8) | ||
Mexican | 8 (50) | ||
Smoker | 2 (12.5) | ||
Former smoker | 4 (25) | ||
Hypertension | 1 (6.3) | ||
Age (years) | |||
Mean (SD) | 34.6 (11.8) | ||
Median (IQR) | 30.5 (16.5) | ||
Range | 22-56 | ||
Heart Rate Variability Measures | |||
n = 4436 for all variables (total number of measures across all subjects) | |||
Mean (SD) | Median (IQR) | Range | |
SDNN (msec) | 66.6 (28.9) | 62.0 (29.9) | 4.1-704.9 |
HF (Hz) | 234.4 (458.5) | 121.9 (213.5) | 0.3-8535.0 |
LF (Hz) | 731.0 (591.4) | 592.5 (639.3) | 1.0-7155.0 |
LF/HF | 6.7 (6.0) | 4.9 (5.8) | 0.1-130.6 |