Immunoglobulin D (IgD) normal and 95^th percentile values by age

Age (years)	Average normal IgD (mg/dL)	Upper limit reference range IgD*
0 to 0.5	0.07	0.21
0.5 to 1	0.34	1.64
1 to 2	0.71	6.58
2 to 4	1.60	20.4
4 to 6	4.82	29.1
6 to 10	4.49	41.4
10 to 15	4.84	23.6
>15	1.95	23.7

IgD: immunoglobulin D.
* >2 standard deviations above the mean for age.

Data from: Haraldsson A, Weemaes CM, Jonasdottir S, et al. Serum immunoglobulin D in infants and children. Scand J Immunol 2000; 51:415.

Graphic 62882 Version 4.0

Immunoglobulin D (IgD) normal and 95th percentile values by age