Table 3.

Crude rates of cervical dysplasia incidence and progression by baseline CD4 count among 601 HIV-positive women in Johannesburg, South Africa

CD4 counta	Incidence or progression		Incidence only		Progression only
	Rateb	95% CL	Rateb	95% CL	Rateb	95% CL
<50	18.0	10.0, 32.6	25.8	12.9, 51.5	10.0	3.2, 31.0
50–199	15.4	11.4, 20.8	18.8	12.0, 29.5	13.4	8.9, 20.2
200–349	13.5	9.7, 18.7	18.1	12.2, 26.7	8.6	4.7, 15.5
≥350 +	10.8	7.7, 15.2	11.6	7.8, 17.3	9.3	4.8, 17.8

CL, confidence limit.

^aUnit: cells/mm³

^brates per 100 person-years.