Figure 1

(A) Cancer patients compared to control patients (MWU, p = 0.0440), (B) T-stage dependent variability in methane to hydrogen ratio. (KW, overall p = 0.0121, Dunn’s correction for multiple comparisons between tumour stage p values; a = 0.1449, b = 0.0687, c = 0.0259). Solid lines describe the median and interquartile ranges. Individual data points indicate the value for each patient.