Table 2. Strain parameter values.
| Total (N = 324) | Male (n = 157) | Female (n = 167) | p-value | ||
|---|---|---|---|---|---|
| LA reservoir strain (%) | 35.9 ± 10.6 | 34.3 ± 10.0 | 37.3 ± 11.0 | 0.009 | |
| Four-chamber (%) | 35.4 ± 11.3 | 33.7 ± 10.3 | 37.0 ± 11.9 | 0.008 | |
| Two-chamber (%) | 36.3 ± 10.9 | 34.9 ± 10.8 | 37.7 ± 10.8 | 0.020 | |
| LA conduit strain (%) | 21.9 ± 9.3 | 20.3 ± 8.5 | 23.5 ± 9.8 | 0.002 | |
| Four-chamber (%) | 22.3 ± 9.9 | 20.5 ± 8.9 | 24.0 ± 10.4 | 0.001 | |
| Two-chamber (%) | 21.5 ± 9.5 | 20.0 ± 9.0 | 22.9 ± 9.8 | 0.005 | |
| LA contractile strain (%) | 13.9 ± 3.6 | 14.0 ± 3.7 | 13.8 ± 3.6 | 0.645 | |
| Four-chamber (%) | 13.0 ± 4.1 | 13.2 ± 4.0 | 12.9 ± 4.1 | 0.585 | |
| Two-chamber (%) | 14.8 ± 4.5 | 14.9 ± 4.6 | 14.8 ± 4.4 | 0.801 | |
| LA conduit/contractile strain ratio | 1.7 ± 0.8 | 1.5 ± 0.7 | 1.8 ± 0.8 | 0.001 | |
| Global LV longitudinal strain (%) | -20.4 ± 2.2 | -19.5 ± 2.1 | -21.2 ± 2.1 | < 0.001 | |
| Early diastolic strain rate (s-1) | 1.6 ± 0.4 | 1.4 ± 0.3 | 1.7 ± 0.4 | < 0.001 | |
| Late diastolic strain rate (s-1) | 0.8 ± 0.3 | 0.8 ± 0.3 | 0.8 ± 0.3 | 0.966 | |
LA: left atrium, LV: left ventricle.