APC	adenomatous polyposis coli
AUROC	area under the receiver operating characteristic curve
BRAF	B-Raf proto-oncogene, serine/threonine kinase
CI	confidence interval
COPD	chronic obstructive pulmonary disease
COX-2	cyclooxygenase-2
CRC	colorectal cancer
DVD/CAR/PMDS	divinylbenzene/carboxen/polydimethylsiloxane
FDR	false discovery rate
FIT	faecal immunochemical test
GC-MS	gas chromatography mass spectrometry
HCs	healthy controls
HS-SPME	headspace solid-phase microextraction
KRAS	Kirsten rat sarcoma viral oncogene homolog
MMR	mismatch repair
MSI	microsatellite instability
NF-κB	nuclear factor kappa-light-chain-enhancer of activated B cells
NPV	negative predictive value
OPLS-DA	orthogonal partial least squares-discriminant analysis
PCA	principal component analysis
PPV	positive predictive value
SD	standard deviation
TDN	1,2-dihydro-1,1,6-trimethyl-naphthalene
TP53	tumour protein 53
VIP	variables of importance in projection
VOMs	volatile organic metabolites