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Table 5 Serum calcium and calcium supplementation

From: Comparison of parathyroid hormone kinetics in endoscopic thyroidectomy via bilateral areola with open thyroidectomy

 

ETBAA

OTA-L

OTA-H

Preoperative

 Calcium (mmol/L)

2.32 ± 0.21

2.33 ± 0.19

2.29 ± 0.39

 Supplementation (g)

0

0

0

First day postoperation

 Calcium (mmol/L)

2.28 ± 0.32

2.35 ± 0.22

2.13 ± 0.37

 Supplementation (g)

2.56 ± 0.48**

2.59 ± 0.32£

3.82 ± 0.46#

second day postoperation

 Calcium (mmol/L)

2.21 ± 0.37**

2.27 ± 0.31£

2.09 ± 0.41#

 Supplementation (g)

1.89 ± 0.32**

1.93 ± 0.26£

2.75 ± 0.41#

third day postoperation

 Calcium (mmol/L)

2.25 ± 0.18

2.26 ± 0.19

2.18 ± 0.39

 Supplementation (g)

0.52 ± 0.61**

0.41 ± 0.61£

1.83 ± 0.37#

  1. *P < 0.05, **P < 0.01; analysis of the total three groups with Cochran’s and Mantel-Haenszel Chi-square (χCMH2) test, while the variable of side was controlled
  2. #P < α’, analysis of group ETBAA and group OTA-H with χCMH2 test, α’ = α/4 = 0.0125
  3. £P < α’, analysis of group OTA-L and group OTA-H with χCMH2 test, α’ = α/4 = 0.0125