Development of a nomogram for predicting hyperkalemia in advanced chronic kidney disease.

In adjusted models, men had a 49% lower risk of hyperkalemia (OR 0.51, 95% CI 0.28-0.92).

Sex-specific nomograms demonstrated good discrimination, with AUROC of 0.78 in men and 0.81 in women, and calibration analyses confirmed adequate model fit.

Importantly, both models showed a high negative predictive value (>95%), supporting their use in safely identifying low-risk patients who may require less intensive monitoring.