Table 3. Incidence of Pneumocystis pneumonia (PcP) and other respiratory illnesses, Malawi, 2002–2004*.

Diagnosis	All CD4 counts		CD4 0–99/mm3		CD4 100–199/mm3
	No. events	Incidence, % (95% CI)	No. events	Incidence, % (95% CI)	No. events	Incidence, % (95% CI)
Confirmed PcP	6	1.0 (0.3–2.2)	5	5.7 (1.9–13.4)	1	0.6 (0.01–3.8)
Bacterial pneumonia†	102	17.3 (14.1–21.0)	35	40.2 (28.0–56.0)	42	28.6 (20.6–38.6)
Pulmonary tuberculosis	51	8.6 (6.4–11.3)	20	23.0 (14.0–35.5)	25	17.0 (11.0–25.1)
Unspecified respiratory illness	127	21.5 (17.9–25.6)	46	52.9 (38.7–70.5)	38	25.9 (18.3–35.5)

*CI, confidence interval.
†Diagnosis based on new consolidations on a chest x–ray and response to antimicrobial drugs; includes cases with and without positive blood cultures.