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. 2021 Jun 3;16:256. doi: 10.1186/s13023-021-01879-1

Table 2.

Correlations between the variables analyzed

Tyr Phe Phe/Tyr
NTBC
N 217 217 217
Corr 0.247 0.095 − 0.184
R2 0.06 0.01 0.03
Sig 0.0001 0.165 0.006
Tyrosine
N 217 217
Corr 0.439 − 0.408
R2 0.19 0.17
Sig 0.0001 0.0001
Phenylalanine
N 217
Corr 0.245
R2 0.06
Sig 0.0001

Values in bold are statistically significant

Corr Pearson correlation coefficient, N number of determinations, NTBC nitisinone, Phe phenylalanine, R2 coefficient of determination, Sig significance, Tyr tyrosine