Table 4.

Correlations between urinary concentrations of amino acids and symptom index scores for each of the three clusters defined by k-means clustering of urinary amino acid profiles for the male participants

Males: Amino Acid versus Symptom Index	Cluster 1 n = 35	Cluster 2 N = 21	Cluster 3 N = 49
ALA vs GIT	r = -.34	ns	ns
ABA vs General fatigue	ns	r = .47	ns
ABA vs Chalder total fatigue	ns	r = .56	ns
ABA vs Chalder physical fatigue	ns	r = .46	ns
ABA vs Chalder mental fatigue	ns	r = .60	ns
BAIB vs General fatigue	ns	ns	r = .50
BAIB vs Pain	ns	ns	r = .37
BAIB vs Vitality	ns	ns	r = .38
BAIB vs Total fatigue	ns	ns	r = .32
BAIB vs Chalder physical fatigue	ns	ns	r = .28
BAIB vs Chalder mental fatigue	ns	ns	r = .33
ASN vs General fatigue	r = .34	ns	ns
GLY vs GIT	r = -.41	ns	ns
HYP vs Vitality	ns	ns	r = .37
LEU vs GIT	r = -.49	ns	ns
ORN vs Chalder mental fatigue	ns	ns	r = .33
PHE vs GIT	r = -.40	ns	ns
PHE vs Chalder physical fatigue	r = .35	ns	ns
PHP vs Vitality	r = -.37	ns	ns
PHP vs Chalder physical fatigue	r = -.38	ns	ns
TYR vs Chalder physical fatigue	r = .38	ns	ns
VAL vs GIT	r = -.39	ns	ns
Total BCAA vs GIT	r = -.47	ns	ns
Total AA vs GIT	r = -.36	ns	ns