Comparing postoperative complication of LigaSure Small Jaw instrument with clamp and tie method in thyroidectomy patients: a randomized controlled trial [IRCT2014010516077N1]

Table 3 Pre- and postoperative total and ionized calcium in HS and LSJ groups

Variable		Thyroidectomy	Subtotal			Total			P			Machine
		Technique	HS group	LSJ group	Independent t test	HS group	LSJ group	Independent t test	Mixed model
		Time	Mean ± S.D.		Independent t test	Mean ± S.D.		Independent t test	Surgery type	Interaction	Time
Calcium	Total (mg/dl)	Day before surgery	9.89 ± 0.86	9.88 ± 0.89	0.47	9.87 ± 1.02	9.89 ± 0.92	0.57	< 0.01	0.01	< 0.01	0.91
		Day after surgery	9.01 ± 0.94	9.45 ± 1.12	0.39	8.81 ± 0.74	8.98 ± 0.82	0.1
		2 weeks after surgery	9.11 ± 0.92	9.55 ± 0.10	0.85	9.21 ± 0.97	9.21 ± 1.06	0.1
	Ionized (mmo/l)	Day before surgery	1.09 ± 0.23	1.09 ± 0.12	0.62	1.091	1.088	0.07	0.01	0.65	< 0.01	0.98
		Day after surgery	1.03 ± 0.18	1.05 ± 0.33	0.08	1.019	1.031	0.09
		2 weeks after surgery	1.01 ± 0.19	1.06 ± 0.13	0.03	1.016	1.055	< 0.01

Abbreviations: SD standard deviation, HS hand sewing, LSJ LigaSure Small Jaw

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