Table 4. Rates of HIV-related illnesses in four CD4 cell count strata during the first 5 years of first line antiretroviral therapy.

Type of HIV-related illness	CD4 < 200 cells/μl Rate per 100PYAR (95% CI)	CD4 200–350 cells/μl Rate per 100PYAR (95% CI)	CD4 351–500 cells/μl Rate per 100PYAR (95% CI)	CD4 >500 cells/μl Rate per 100PYAR (95% CI)
Pulmonary TB	15.98 (15.47–16.51)	1.45 (1.29–1.63)	1.05 (0.87–1.27)	0.98 (0.87–1.10)
Oral candidiasis	12.5 (12.03–12.94)	0.75 (0.64–0.89)	0.61 (0.47–0.78)	0.60 (0.54–0.72)
Herpes Zoster	6.30 (5.99–6.64)	0.99 (0.86–1.14)	0.84 (0.68–1.04)	0.60 (0.52–0.71)
Chronic diarrhoea	5.48 (5.18–5.78)	1.22 (1.07–1.39)	1.08 (0.89–1.31)	0.84 (0.71–0.91)
Esophageal candidiasis	1.98 (1.81–2.17)	0.20 (0.15–0.28)	0.14 (0.08–0.23)	0.15 (0.13–0.23)
Kaposi Sarcoma	1.82 (1.66–2.01)	0.30 (0.23–0.39)	0.18 (0.11–0.28)	0.13 (0.09–0.18)
Pneumocystis carinii pneumonia	1.86 (1.69–2.04)	0.30 (0.23–0.39)	0.14 (0.08–0.23)	–
Cryptococcal meningitis	1.06 (0.93–1.20)	0.38 (0.30–0.47)	0.28 (0.19–0.40)	–
Herpes Simplex Virus	1.43 (1.28–1.59)	0.32 (0.25–0.42)	0.18 (0.11–0.28)	0.18 (0.13–0.24)
Extrapulmonary TB	1.12 (1.00–1.27)	0.30 (0.23–0.39)	0.28 (0.19–0.40)	–
Toxoplasmosis	0.51 (0.42–0.61)	0.09 (0.06–0.15)	0.04 (0.02–0.12)	–
Pruritic purpura eruptions	3.33 (3.13–3.54)	1.61 (1.44–1.27)	1.11 (0.92–1.34)	0.97 (0.86–1.09)
Recurrent URTI	2.56 (2.39–2.74)	1.11 (0.97–1.27)	0.82 (0.66–1.01)	1.00 (0.89–1.13)

TB, tuberculosis, URTI, Upper respiratory tract infection.