Table 2.
Comparison of a number of cardiovascular parameters of lead-exposed subjects (E) involving the subgroups of high-exposed (hE) and low-exposed (lE), and controls (C) at rest and during recovery.
| Physiological strain data | Exposed (E) | Controls (C) | High exposed (hE) | Low exposed (lE) | P (E-C) | P (hE-C) | P (lE-C) |
|---|---|---|---|---|---|---|---|
| HR rest (1/min) | 67.1 ± 10.9 | 75.2 ± 11.7 | 64.4 ± 10.9 | 68.3 ± 10.7 | .002 | .003 | .015 |
| SAa rest (ms) | 29.6 ± 17.6 | 16.0 ± 16.6 | 34.1 ± 21.2 | 27.5 ± 15.5 | .001 | .002 | .005 |
| LF (%) rest | 49.9 ± 15.8 | 62.7 ± 16.1 | 48.7 ± 14.6 | 50.5 ± 16.4 | .001 | .005 | .004 |
| HF (%) rest | 36.2 ± 17.4 | 18.3 ± 15.3 | 35.8 ± 16.4 | 36.4 ± 18.0 | <.001 | .001 | <.001 |
| HR recovery (1/min) | 69.6 ± 9.1 | 74.8 ± 13.1 | 67.6 ± 10.4 | 70.5 ± 8.5 | .068 | .045 | .137 |
| SAa recovery (ms) | 25.7 ± 12.9 | 17.8 ± 13.9 | 26.7 ± 14.6 | 25.3 ± 12.2 | .010 | .037 | .019 |
| HF Recovery (ms2) | 4067.5 ± 3545.7 | 1627.5 ± 2789.7 | 3885.5 ± 3673.1 | 4152.4 ± 3523.7 | .001 | .019 | .001 |
| HF (%) Recovery | 34.5 ± 23.9 | 19.9 ± 17.7 | 30.5 ± 23.2 | 36.3 ± 24.3 | .002 | .079 | .002 |