Table 3. Bivariate Rank Correlations^a of BDI-II scores; BMI and biological measures.

	BDI-II	TRP	KYN	KYN/TRP Ratio	QA	KA
TRP	−.393***
KYN	−.079	.170
KYN/TRP Ratio	.184	−.456***	.741***
QA	−.096	−.018	.598***	.573***
KA	−.282**	.219*	.555***	.348***	.418***
BMI	.366***	−.186	.278***	.409***	.327***	.118

Notes.

^aSpearman’s Rho rank based on 105 Cases.

^*p < 0.05.

^**p < 0.01.

^***p < 0.001.