Table 1.

Patient immunophenotyping.

Age (years)	10	11	11.5	12	12.5	Reference range
Lymphocyte populations % (Absolute)
CD3	95 (5025)	91 (5002)	89 (6998)	85 (974)	86 (877)	43–76%
CD4	69 (3615)	74 (4057)	62 (4941)	54 (640)	46 (464)	23–48%
CD8	24 (1263)	19 (1042)	23 (1858)	28 (329)	34 (345)	14–33%
CD19	1.7 (89)	2 (110)	2.8 (215)	5 (56)	4.6 (47)	14–44%
CD19+CD27+Memory B cells	0	0	0	0	0	1.5–4%
CD16/56	2.8 (147)	4 (219)	7.4 (577)	6.2 (69)	7.4 (75)	4–23 %
CD4/CD8 Ratio	2.8	3.9	2.6	1.9	1.3	0.9–2.9
T cell proliferation to PHA	50% Decrease	ND	Borderline low	ND	ND

ND, not determined.