Evaluation of serum amino acids and non-enzymatic antioxidants in drug-naïve first-episode major depressive disorder

Table 4 Correlation study between altered research parameters and Ham-D scores in MDD patient

Correlation parameters	r	p
Methionine and Ham-D score	−0.155	0.015
Phenylalanine and Ham-D score	−0.120	0.060
Tryptophan and Ham-D score	− 0.122	0.056
Tyrosine and Ham-D score	−0.172	0.007
Vitamin A and Ham-D score	0.019	0.761
Vitamin E and Ham-D score	0.020	0.757
Vitamin C and Ham-D score	0.006	0.921

r, correlation coefficient; p, significance; Ham-D, Hamilton depression rating scale
p is significant at the 0.05 level; Negative values indicate the opposite correlation

ISSN: 1471-244X