Table 2 Mean of 2D speckle tracking echocardiography (STE) parameter in subjects of our study categorized according to age-group and r and P values of correlation between 2D strain and age
< 1 year | > 1 ≤ 2 years | > 2 ≤ 3 years | > 3 ≤ 4 years | > 4 ≤ 5 years | > 5 ≤ 6 years | Total | r | P | |
|---|---|---|---|---|---|---|---|---|---|
No | 12 | 12 | 39 | 43 | 41 | 53 | 200 | ||
2D GLS% | − 23.291 ± 7.314 | − 24.491 ± 1.105 | − 23.555 ± 0.595 | − 22.338 ± 0.745 | − 21.140 ± 0.670 | − 19.957 ± 0.882 | − 22.1345 ± 2.166 | 0.898 | 0.001 |
2D GCS% | − 18.95 ± 0.922 | − 19.1 ± 0.7508 | − 19.447 ± 1.341 | − 18.704 ± 1.221 | − 18.941 ± 0.894 | − 19.035 ± 1.498 | − 19.021 ± 1.238 | 0.077 | 0.28 |
2D GRS% | 48.433 ± 2.7002 | 44.583 ± 1.151 | 43.413 ± 0.864 | 42.445 ± 0.825 | 41.307 ± 0.798 | 40.038 ± 1.054 | 42.25 ± 2.35 | − 0.886 | 0.001 |