Figure 3.

Annual rate of kidney stone events before and after treatment among inverse probability–weighted (IPW) groups of patients with PHPT and a baseline history of kidney stones treated with parathyroidectomy within 2 years vs nonoperative management.^a,b. ^aThe propensity score used for IPW in this table was based on sex, age group, race, ethnicity, Charlson Comorbidity Index, endocrinologist or nephrologist/urologist care within 6 months of PHPT diagnosis, operative indications for parathyroidectomy (history of kidney stones, osteoporosis, or stage 3 chronic kidney disease at the time of PHPT diagnosis), and risk factors for kidney stones (hypertension, diabetes, gout, body mass index). ^bRate of stone events at time 0 represents rate in year before treatment date.