Fig. 1
From: Ex-vivo RNA expression analysis of vaccine candidate genes in COPD sputum samples
Relative RNA concentration of NTHi genes in NTHi positive samples, normalised to ompP6. Relative RNA concentration of the NTHi genes pd, pe, and pilA, in copies per μl, normalised to the housekeeping gene ompP6 RNA. Relative expressions were not significantly different between ST and EX with either paired t-tests or Welch’s two-sample t-tests. ST stable visit, EX exacerbation visit. Each circle represents normalised gene concentration observed in a single sample. Geometric mean relative concentration of each antigen is represented by the colored diamond symbols (yellow for ST and blue for EX samples) with error bars showing standard error widths