Table 5. Statistical significance of the difference in mean CD4+ T-cell count/μL of preinvasive and invasive lesions on HAART and not on HAART.

	Not on HAART		On HAART
	t	P	t	P
CIN1 versus CIN2	0.10	0.92	0.50	0.65
CIN2 versus CIN3	0.62	0.54	0.36	0.76
CIN3 versus invasive cancer	0.17	0.86	0.97	0.34

HAART: highly active antiretroviral treatment.