Table 3.

PCA of plasma amino-acid profile of study data set

	PC1	PC2	PC3	PC4	PC5
Thr	-0.204	0.266	-0.187	0.096	-0.100
Ser	-0.123	0.400	-0.016	-0.240	-0.369
Asn	-0.211	0.296	-0.269	-0.040	-0.031
Glu	-0.146	-0.374	0.089	0.072	-0.132
Gln	-0.128	0.290	-0.032	0.078	0.169
Pro	-0.211	-0.064	0.153	0.490	-0.214
Gly	0.021	0.384	0.154	0.073	-0.435
Ala	-0.240	-0.057	-0.136	0.295	-0.220
Cit	-0.138	0.214	0.379	0.141	0.394
ABA	-0.177	-0.002	-0.033	-0.396	-0.212
Val	-0.287	-0.190	0.033	-0.235	-0.034
Met	-0.309	0.095	-0.101	0.052	0.060
Ile	-0.294	-0.226	0.205	-0.127	-0.118
Leu	-0.304	-0.228	0.054	-0.258	-0.029
Tyr	-0.269	-0.089	-0.005	0.353	-0.086
Phe	-0.240	-0.117	-0.066	0.005	0.163
His	-0.188	0.088	-0.484	-0.010	0.256
Trp	-0.231	-0.109	-0.328	0.090	0.112
Orn	-0.219	0.104	0.427	0.041	-0.053
Lys	-0.231	0.075	0.153	-0.367	0.107
Arg	-0.176	0.225	0.256	0.020	0.421
Eigenvalue	5.897	2.346	1.369	1.214	1.167
p value	< 0.001	0.99	< 0.001	0.23	< 0.001

PCs that had eigenvalues of >1 are indicated. Bold numbers indicate the amino acids of those PCs extracted that had a variance of >0.05. The Mann-Whitney U-test p values for comparisons of each PC score between the controls and NSCLC patients are shown.