Table 4.
Diagnostic Concordance Rate between CT and AVS Findings in Patients with Marked PA (e.g., Hypokalemia and Plasma Aldosterone Concentration >15.9 ng/dL) and Unilateral Lesion on CT (n=198), Stratified by Age
| Variable | Total (n=198) | Age, yr (<35, 35–39, 40–49, ≥50) | Age, yr (<50, ≥50) | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
|
|
||||||||
| <35 (n=13) | 35–39 (n=20) | 40–49 (n=66) | ≥50 (n=99) | P value | <50 (n=99) | ≥50 (n=99) | P value | ||
| Unilateral PA on AVS | 0.283 | 0.081 | |||||||
| Ipsilateral lesion on CT | 169 (85.4) | 11 (84.6) | 20 (100.0) | 59 (89.4) | 79 (79.8) | 90 (90.9) | 79 (79.8) | ||
| Contralateral lesion on CT | 6 (3.0) | 0 | 0 | 2 (3.0) | 4 (4.0) | 2 (2.0) | 4 (4.0) | ||
|
| |||||||||
| Bilateral PA on AVS | 23 (11.6) | 2 (15.4) | 0 | 5 (7.6) | 16 (16.2) | 7 (7.1) | 16 (16.2) | ||
|
| |||||||||
| Concordance between CT and AVS | 0.061 | 0.044 | |||||||
| Concordance | 169 (85.4) | 11 (84.6) | 20 (100.0) | 59 (89.4) | 79 (79.8) | 90 (90.9) | 79 (79.8) | ||
| Discordance | 29 (14.6) | 2 (15.4) | 0 | 7 (10.6) | 20 (20.2) | 9 (9.1) | 20 (20.2) | ||
Values are expressed as number (%).
CT, computed tomography; AVS, adrenal vein sampling; PA, primary aldosteronism.