Table 3 Sensitivities and specificities of SMU Na/K for high plasma aldosterone concentration (≥90th percentile) among men
From: Urinary sodium/potassium ratio as a screening tool for hyperaldosteronism in men with hypertension
SMU Na/K <1.0 (95% confidence interval) | SMU Na/K <2.0 (95% confidence interval) | SMU Na/K <3.0 (95% confidence interval) | |
|---|---|---|---|
Sensitivity | 45.5% (16.7–76.6) | 63.6% (30.8–89.1) | 90.9% (58.7–99.8) |
Specificity | 97.9% (92.7–99.7) | 64.9% (54.6–74.4) | 40.2% (30.4–50.7) |
PPV | 71.4% (29.0–96.3) | 17.1% (7.2–32.1) | 14.7% (7.3–25.4) |
NPV | 94.1% (87.5–97.8) | 94.0% (85.4–98.3) | 97.5% (86.8–99.9) |
