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Table 5 Comparison of PTH level and serum calcium level between patients with SPG and IPG orthotopic retention vs. auto-transplantation

From: Clinical significance of retrograde inferior parathyroid protection technique based on thymus preservation in thyroid surgery

Variable

SPG and IPG orthotopic retention

SPG and IPG auto transplantation

Chi-square value

P value

PTH (pre-operation)

4.02 ± 1.33

4.30 ± 1.98

-0.546

0.592

PTH (1 days after surgery)

3.44 ± 1.29

2.57 ± 1.24

2.422

0.018

PTH (2 months after surgery)

3.90 ± 1.10

2.86 ± 1.05

3.388

0.001

PTH (6 months after surgery)

4.23 ± 1.44

3.37 ± 1.12

2.203

0.031

Ca (pre-operation)

2.34 ± 0.07

2.28 ± 0.31

0.871

0.397

Ca (1 days after surgery)

2.21 ± 0.09

2.19 ± 0.07

0.943

0.349

Ca (2 months after surgery)

2.38 ± 0.11

2.34 ± 0.11

1.121

0.266

Ca (6 months after surgery)

2.37 ± 0.10

2.31 ± 0.10

0.712

0.053

  1. Note Measurement unit for PTH level and serum calcium level is pmol/L, mmol/L respectively