Table 1.

Descriptive Statistics for Women in the Comparison Group and Women with Breast Cancer at Baseline (Time 1) and After Completion of Chemotherapy (Time 2)

	n	mean	median	std	stderr	95% LCL	95% UCL
Comparison Group (Benign Breast Biopsy)
Kynurenine (μmol/l)	24	1.98	1.92	0.43	0.09	1.79	2.16
Tryptophan (μmol/l)	24	52.89	51.90	10.44	2.13	48.48	57.30
Kyn/Trp ratio (μmol/l μmol)	24	3.81	3.81	0.88	0.18	3.44	4.18
Tyrosine (μmol/l)	24	81.70	76.63	26.20	5.35	70.64	92.77
Age (years)	24	49.96	48.50	10.98	2.24	45.32	54.60
Breast Cancer Group
Time 1 (Baseline - Prior to Induction of Chemotherapy)
Kynurenine (μmol/l)	33	2.27	2.05	1.13	0.20	1.87	2.67
Tryptophan (μmol/l)	33	48.86	47.62	10.68	1.86	45.08	52.65
Kyn/Trp ratio (μmol/l μmol)	33	4.62	4.10	1.88	0.33	3.95	5.28
Tyrosine (μmol/l)	32	85.43	81.49	19.12	3.38	78.53	92.32
Age (years)	33	47.76	50.00	7.58	1.32	45.07	50.45
Time 2 (After Completion of Chemotherapy)
Kynurenine (μmol/l)	30	2.00	1.97	0.66	0.12	1.75	2.24
Tryptophan (μmol/l)	30	48.14	49.82	10.81	1.97	44.11	52.18
Kyn/Trp ratio (μmol/l μmol)	30	4.23	3.99	1.36	0.25	3.72	4.74
Tyrosine (μmol/l)	30	86.44	83.99	20.76	3.79	78.69	94.19