A Nomogram for Predicting Secondary Hyperparathyroidism after Bariatric Surgery: A Retrospective Study on Short-Term Outcome.

Background: Secondary hyperparathyroidism (SHPT) is a condition that may occur after bariatric surgery. This study aimed to evaluate clinical factors that could predict SHPT after bariatric surgery and to construct a nomogram.

Methods: Data for 294 patients were retrieved and divided into training and validation cohorts (206 and 88 patients, respectively).