Table 1 Baseline characteristics of risk factors for abnormal ECG findings and GHQ according to sleep duration in 1993
Characteristics | Sleep duration (h/day) | p for trend | Age-adjusted p for trend | ||
|---|---|---|---|---|---|
≤6 | 7 | ≥8 | |||
n | 91 | 120 | 107 | Â | Â |
Age, mean | 60.1 ± 7.7 | 63.0 ± 8.9 | 64.3 ± 8.5 | 0.002* | – |
BMI, mean | 24.0 ± 3.1 | 24.1 ± 3.4 | 23.6 ± 3.2 | 0.383 | 0.49 |
SBP, mean (mmHg) | 133.4 ± 18.1 | 132.7 ± 15.0 | 132.9 ± 16.0 | 0.960 | 0.73 |
DBP, mean (mmHg) | 79.7 ± 10.1 | 79.1 ± 9.9 | 79.0 ± 9.1 | 0.853 | 0.86 |
TC, mean (mg/dl) | 208.9 ± 33.6 | 209.7 ± 31.7 | 203.4 ± 34.7 | 0.311 | 0.24 |
HDL-C, mean (mg/dl) | 55.2 ± 12.6 | 56.3 ± 13.9 | 55.9 ± 13.1 | 0.847 | 0.86 |
TG, mean (mg/dl) | 166.4 ± 111.6 | 172.5 ± 99.4 | 164.2 ± 131.0 | 0.858 | 0.84 |
GHQ, mean | 1.85 ± 2.07 | 1.29 ± 1.70 | 1.26 ± 1.58 | 0.035* | 0.04* |