Table 2. Distribution of lymphocyte subsets among HIV-infected CDC groups A, B and C.

	CDC group A (n = 212)		CDC group B (n = 172)		CDC group C (n = 194)
Lymphocyte subset	Mean	95%CI	Mean	95%CI	Mean	95%CI
CD4
″Count/µl.	379·2	348·5–410	218·9	195·4–242·3	163·4	147·0–179·8
″CD4%	15·9	15·0–16·7	″11·6	10·5–12·8	″9·7	″8·9–10·6
CD8
″Count/µl.	1351·2	1250–1452·3	1164·3	1061·5–1261·0	1046·5	936·7–1156·3
″CD8%	54·9	53·3–56·5	58·7	56·8–60·7	″58·5	56·6–60·3
CD4/CD8 ratio	″0·32	0·30–0·35	″0·20	0·19–0·25	″0·18	0·16–0·20
WBC count/µl.	″7·1	6·6–7·5	″6·3	5·8–6·8	″6·0	″5·5–6·5
Lymphocyte%	35·3	34·2–36·4	32·6	31·0–34·2	30·6	29·1–32·0

n, number of individuals (excludes outliers).