Table 4.

Correlation between the imbalance of kynurenine pathway metabolism and SAS score in IBS-D group (x±s, n=30).

Variable	SAS	P value
KYN/Trp	0.487	0.065
QUIN/KYNA	0.691	0.004
QUIN/KYN	0.154	0.584
KYNA/KYN	-0.697	0.004