Figure 3From: Nitric oxide production in the exhaled air of patients with pulmonary tuberculosis in relation to HIV co-infection Levels of urinary nitrite and nitrate (NO 2 - /NO 3 - ). Levels of urinary nitrite and nitrate (NO2 -/NO3 -) in HIV-/TB patients (n = 58), HIV+/TB patients (n = 35), household contacts to smear positive TB patients (HC, n = 12) and blood donors (BD, n = 45) presented as median and interquartile range. * (p < 0.05).Back to article page