Research Article

Patterns in the Parathyroid Response to Sodium Bicarbonate Infusion Test in Healthy Volunteers

Table 1

The various PTH values, total calcium and vitamin D levels of all the patients.

Total 
Group A 
Group B 

(A versus B)

Age (y) [SD]47.58 [2.05]48.42 [2.12]44.40 [5.81]0.432
BMI (Kg/m2) [SD]26.15 [0.58]26.69 [0.63]24.00 [1.27]0.065
25(OH)D (ng/mL) [SD]24.16 [2.11]26.09 [2.46]15.60 [1.92]
Calcium (mg/dL) [SD]8.86 [0.08]8.85 [0.10]8.87 [0.17]0.895
Albumin (g/dL) [SD]4.35 [0.06]4.35 [0.67]4.32 [0.15]0.809
Phosphate (mg/dL) [SD]3.43 [0.08]3.37 [0.10]3.60 [0.16]0.257
Magnesium (mg/dL) [SD]2.12 [0.04]2.13 [0.05]2.10 [0.06]0.914
PTH at 0 min (pmol/L) [SD]4.41 [0.17]4.37 [0.17]4.57 [0.50]0.639
PTH at 3 min (pmol/L) [SD]11.22 [0.57]12.14 [0.61]7.53 [0.70] <
PTH at 5 min (pmol/L) [SD]9.79 [0.45]10.40 [0.48]7.33 [0.89]
PTH at 10 min (pmol/L) [SD]6.00 [0.28]6.22 [0.30]5.13 [0.66]0.117
PTH at 30 min (pmol/L) [SD]4.76 [0.24]4.80 [0.27]4.63 [0.55]0.747
PTH at 60 min (pmol/L) [SD]4.89 [0.21]4.98 [0.24]4.50 [0.16]0.367

Total PTH secretion (pmol/L) [SD]331.17 [15.65]345.78 [15.24]272.73 [46.52]0.061

When statistically significant.