Table 1.

Demographic, clinical, and biochemical parameters of all patients developing PoSH and comparison of those who did or did not achieve remission at 6 months.

	Overall (n  =270)	Recovery within 6 months (n  = 136)	PoSH at 6 months (n  = 54)	P value
Median age (IQR)	45.2 (32–57.6)	46.3 (33.9–57.6)	41.7 (28.9–59.9)	0.411
Gender, F/M	215/55	111/25	46/8	0.556
Pre-op diagnosis, % (n)
Cancer/suspected cancer	36.3% (98)	38.2% (52)	42.6% (23)	0.739
Hyperthyroidism	41.9% (113)	40.4% (55)	40.7% (22)
Thyroid nodule	21.9% (59)	21.3% (29)	16.7% (9)
Pathology % (n)
Benign	64.4% (174)	62.5% (85)	57.4% (31)	0.516
Malignant	35.6% (96)	37.5% (51)	42.6% (23)
Type of surgery, % (n)
CT	4.1% (11)	4.4% (6)	1.9% (1)	0.783
CT+CND	2.6% (7)	2.9% (4)	3.7% (2)
TT	71.5% (193)	69.1% (94)	66.7% (36)
TT+CND	21.9% (59)	23.5% (32)	27.8% (15)
Adjusted calcium day 1 (mmol/L) (IQR) (n)	2.05 (1.98–2.09) (n  =269)	2.06 (1.99–2.1) (n  =136)	1.99 (1.90–2.07) (n  =54)	0.002
PTH day 1 (pmol/L) (IQR) (n)	2.0 (1.0–3.3) (n  = 190)	2.3 (1.4–3.5) (n  = 113)	0.8 (0.5–1.2) (n  = 39)	<0.001

CND, central node dissection; CT, completion thyroidectomy; F/M, female/male; IQR, inter-quartile range; PoSH, post-surgical hypoparathyroidism; PTH, parathyroid hormone; TT, total thyroidectomy.