Table 5 Multiple linear regression for the predictors of HDRS scale of depression among the treated group

Model summary

Adjusted R²

SEE

F

p value

0.529

6.8

22.9

< 0.001 (HS)

Variable

Standardized coefficients

95% CI of B

t

p

B

Std. error

Beta

(Constant)

− 15.05

6.4

–

− 38.2 to − 8.1

3.37

< 0.001 (HS)

Phenylalanine

22.2

3.79

0.655

14.1 to 30.2

5.59

< 0.001 (HS)

Tryptophan

− 5.78

0.47

− 0.294

− 7.74 to − 1.75

2.15

0.031 (S)