Table 1.
Aortic Pressure‐Strain Elastic Modulus in SLE Patients and Controls
| Aortic Location | Patients, n = 76 | Controls, n = 26 | P Valuea |
|---|---|---|---|
| Aortic PSEM, U | |||
| Proximal | 7.77 ± 4.09 | 5.40 ± 2.28 | <0.001/<0.001 |
| Mid | 7.87 ± 4.65 | 6.15 ± 2.93 | 0.03/0.006 |
| Distal | 9.08 ± 6.62 | 6.37 ± 3.17 | 0.01/0.003 |
| Overallb | 8.14 ± 4.25 | 5.97 ± 2.31 | 0.002/<0.001 |
| Aortic strain, stiffness, and distensibility in SLE patients and controls | |||
| Overall strain, %b | 10.7 ± 4 | 12.3 ± 3 | 0.049 |
| Overall stiffness, Ub | 6.55 ± 3.20 | 5.26 ± 1.88 | 0.02 |
| Overall distensibility, Ub | 0.446 ± 0.25 | 0.568 ± 0.18 | 0.01 |
Abbreviations: PSEM, pressure‐strain elastic modulus; SD, standard deviation; SLE, systemic lupus erythematosus.
Data are presented as mean ± SD.
a
Second P value after standardizing both groups to the same pooled mean heart rate and blood pressure using regression coefficients.
b
Overall refers to the average of proximal, mid, and distal thoracic aortic PSEM, strain, stiffness, and distensibility.