Table 2.
Echocardiographic measurements
| All (n=960) |
Low-parity group, parity <3 (n=302) |
Multiparity group, parity ≥3 (n=658) |
P value | |
| Left ventricular end-diastolic dimension, mm | 47.3±5.0 | 46.3±4.0 | 47.7±5.4 | <0.001 |
| Left ventricular end-systolic dimension, mm | 30.2±6.4 | 29.1±5.2 | 30.7±6.8 | 0.002 |
| Interventricular septum thickness, mm | 9.3±1.6 | 9.1±1.5 | 9.3±1.7 | 0.008 |
| Posterior wall thickness, mm | 9.3±4.3 | 9.1±4.8 | 9.4±4.0 | <0.001 |
| Left ventricular ejection fraction, % | 59.3±9.8 | 61.0±9.0 | 58.6±10.0 | 0.004 |
| Left ventricular mass index, g/m2 | 101.8±34.8 | 95.8±29.3 | 105.0±37.1 | 0.001 |
| Left atrial dimension, mm | 37.6±6.3 | 35.9±5.9 | 38.4±6.3 | <0.001 |
| E, cm/s | 66.7±20.1 | 69.1±20.1 | 65.7±20.0 | 0.019 |
| A, cm/s | 77.5±22.8 | 71.7±19.1 | 80.2±23.9 | <0.001 |
| E/A ratio | 1.0±0.6 | 1.0±0.4 | 0.9±0.7 | <0.001 |
| Deceleration time, ms | 212.1±56.1 | 206.7±60.5 | 214.5±53.9 | 0.030 |
| e´ septal, cm/s | 5.9±2.1 | 6.7±2.4 | 5.5±1.9 | <0.001 |
| E/e´ ratio | 12.6±6.1 | 11.4±5.3 | 13.1±6.4 | <0.001 |
| RVSP, mm Hg | 32.1±9.6 | 29.9±8.6 | 33.0±9.9 | <0.001 |
| TR peak velocity, cm/s | 2.3±0.3 | 2.2±0.3 | 2.3±0.3 | 0.038 |
| Grade of left ventricular diastolic dysfunction, n (%) | <0.001 | |||
| Normal | 148 (15.4) | 77 (33.0) | 71 (13.7) | |
| 1 | 518 (54.0) | 129 (55.4) | 389 (75.2) | |
| 2–3 | 84 (8.8) | 27 (11.6) | 57 (11.1) |
RVSP, right ventricular systolic pressure; TR, tricuspid regurgitation.