Fig. 2From: Differences in serum markers of oxidative stress in well controlled and poorly controlled asthma in Sri Lankan children: a pilot studyScatterplots for the correlation between serum TAOCs and (a) serum nitrite concentration (r = − 0.006, p = 0.959), b serum nitrate concentration (r = − 0.306, p = 0.010) and (c) serum NOx concentration (r = − 0.312, p = 0.008). The Spearman’s correlations between the serum TAOC and the serum nitrate and NOx concentrations are statistically significantBack to article page