TmP/GFR Reference Ranges

Age

Range (mmol/L)

n

Reference
Both sexes
Birth
3 months
6 months
2 - 15 years


1.43 - 3.43
1.48 - 3.30
1.15 - 2.60
1.15 - 2.44


20
20
20
101


1
1
1
2
Male
25 - 35 years


1.00 - 1.35


15


3
Female
25 - 35 years


0.96 - 1.44


15


3
Male
45 - 55 years


0.90 - 1.35


15


3
Female
45 - 55 years


0.88 - 1.42


15 (premenopausal)


3
Male
65 - 75 years


0.80 - 1.35


15


3
Female
65 - 75 years


0.80 - 1.35


15


3


References

1

 Bistarakis L, Voskaki I, Lambadaridis J et al. Renal handling of phosphate in the first six months of life. Arch Dis Child 1986; 61: 677-681

2

 Shaw NJ, Wheeldon J, Brocklebank JT. Indices of intact serum PTH and renal excretion of calcium, phosphate and magnesium. Arch Dis Child 1990; 65: 1208-11

3

 Minospla S, Pacitti MT, Scarda A et al. Serum ionised calcium, PTH and related variables: effect of age and sex. Bone Mineral 1993; 23: 183-93