Table 1 The study population demographic characteristics and summaries of HRV indices.
From: Insulin resistance and circadian rhythm of cardiac autonomic modulation
Demographics | All subjects (n = 94) |
|---|---|
Age (years) | 56.5 (7.8) |
Gender (% male) | 37.2 |
Race (% white) | 76.6 |
BMI (kg/m2) | 27.1 (4.9) |
College or higher (%) | 78.2 |
Cardiovascular disease (%) | 7.4 |
Hypertension (%) | 33.0 |
Systolic BP (mmHg) | 122.0 (15.4) |
Diastolic BP (mmHg) | 75.0 (9.3) |
Insulin (μU/mL) | 6.6 (6.7) |
Log insulin (μU/mL) | 1.5 (0.8) |
Glucose (mg/dL) | 84.4 (11.3) |
HOMA-IR | 1.45 (1.73) |
Log HOMA-IR | -0.030 (0.86) |
HRV indices*: | |
Log of HF (ms2) | 4.4 (0.9) |
Log of LF (ms2) | 5.4 (0.8) |
LF/HF ratio | 3.8 (2.2) |
Log of VLF (ms2) | 6.9 (0.6) |
SDNN (ms) | 61.8 (18.4) |
RMSSD (ms) | 29.6 (14.8) |
Heart rate (BPM) | 76.5 (9.7) |