Table 1.

Indications for Parathyroidectomy in Asymptomatic Primary Hyperparathyroidism^*

Serum calcium > 1.0 mg/dL above upper limit of normal Age < 50 years Creatinine clearance < 60 ml/min/1.73m2 T-score on DEXA of < −2.5 at any site and/or previous fracture/fragility

^*No longer included is criterion for 24 hour urinary calcium levels