Table 2.
Frequency domain indices of HRV recorded in supine position of normotensive and prehypertensive offspring of hypertensive parents.
| Parameters | Normotensive offspring | Prehypertensive offspring | P values | ||
|---|---|---|---|---|---|
| Group I | Group II | Group III | Group IV | ||
| (n = 45) | (n = 68) | (n = 32) | (n = 20) | ||
| TP (m2) | 832.50 ± 330.30 | 882.60 ± 370.40 | 545.20 ± 210.60***,### | 605.80 ± 255.70*,## | <0.0001 |
| LFnu | 49.40 ± 18.80 | 48.12 ± 18.20 | 58.82 ± 22.70 | 54.06 ± 20.30 | 0.0654 |
| HFnu | 45.35 ± 20.20 | 46.70 ± 21.26 | 33.20 ± 14.50*,## | 38.80 ± 15.40 | 0.0072 |
| LF : HF ratio | 1.90 ± 1.05 | 1.72 ± 0.95 | 3.86 ± 1.45***,### | 3.02 ± 1.15**,###,† | <0.0001 |
Data presented are mean ± SD; Group I: normotensive offspring of both parents hypertensive; Group II: normotensive offspring of one parent hypertensive; Group III: prehypertensive offspring of both parents hypertensive; Group IV: prehypertensive offspring of one parent hypertensive; the *mark indicates comparison with group I, the #mark indicates comparison with Group II and the †mark indicates comparison with Group III. *P < 0.05; **P < 0.01; ∗∗∗ P < 0.001; # P < 0.05; ## P < 0.01; ### P < 0.001; † P < 0.05.