PTH and hyperparathyroidism: Univariate regression analysis to determine the predictors of cinacalcet use post-transplantation showed significant associations with calcium levels (RR = 1.2 for an increase of 0.1 mmol/L, p = 0.0039), phosphate levels (RR = 0.2 for an increase of 1.0 mmol/L, p = 0.0124), the PTH level at the time of renal transplantation (RR = 1.5 per increase of 20 pmol/L, p = 0.0000), an increased pill burden for the treatment of hyperparathyroidism whilst on the waiting list (RR = 5.2 per pill, p = 0.0000) and “cinacalcet use whilst on the waiting list” (RR = 5.0, p = 0.0000).