| IVS LSS | Groups | T-Test | |||
| Group I (Controls) (n = 30) | Group II (Patients) (n = 30) | t | P-value | ||
| Basal | Range | −24 - −10 | −20 - −6.51 | −3.376 | 0.001* |
| Mean ± SD | −16.600 ± 3.490 | −13.354 ± 3.944 | |||
| Mid | Range | −27 - −14 | −19.65 - −3.53 | −7.52 | <0.001* |
| Mean ± SD | −16.967 ± 2.953 | −12.348 ± 3.809 | |||
| Apical | Range | −28 - −14 | −21.29 - −0.03 | −10.31 | <0.001* |
| Mean ± SD | −19.700 ± 4.268 | −14.247 ± 5.732 | |||