Table 4.

Quantification of serum Ig concentration of the SCID patient at different time points.

	Age in months
	16	29	44	59	77	87	Normal range
IgG, g/L	<1.41*	2.23	9.95†	0.12	0.5	0.99	3.5–16.2
IgA, g/L	<0.244	NA	0.47†	0.002	0.004	0.004	0.17–3.18
IgM, g/L	0.203	0.206	–	–	<0.168*	<0.168*	0.30–2.65
IgE, IU/ml‡	<15.3*	<15.3*	–	–	<4.45*	<17.8*	3–423

^*Serum Ig quantified by nephelometry (below cutoff range). Values without star mark were quantified by IgG/A ELISA (absolute values).

^†Sample collected after IVIG administration.

^‡International Units/milliliter.