Research Article
Prognostic Role of Serum Amino Acids in Head and Neck Cancer
Table 3
Predictors of OS among 202 HNC cases by multivariate analysis.
| Amino acid | HRs (95% CI)a | value |
| Alanine | 0.64 (0.35-1.15) | 0.135 | Alpha-aminobutyric acid | 0.41 (0.24-0.69) | 0.001 | Aminoadipic acid | 1.13 (0.65-1.94) | 0.671 | Arginine | 2.13 (1.07-4.24) | 0.030 | Asparagine | 2.76 (0.99-7.74) | 0.053 | Beta-alanine | 0.70 (0.35-1.40) | 0.309 | Beta-aminobutyric acid | 1.04 (0.63-1.72) | 0.882 | Citrulline | 0.65 (0.39-1.08) | 0.099 | Ethanolamine | 2.28 (1.07-4.84) | 0.032 | Gamma-aminobutyric acid | nc | nc | Glycine | 2.49 (1.17-5.32) | 0.018 | Histidine | 2.98 (1.44-6.19) | 0.003 | Isoleucine | 3.08 (1.49-6.40) | 0.002 | 4-Hydroxyproline | 1.66 (1.00-2.74) | 0.048 | Leucine | 2.29 (1.17-4.48) | 0.015 | Lysine | 2.34 (1.19-4.60) | 0.014 | Methionine | 1.40 (0.85-2.31) | 0.189 | 1-Methylhistidine | 0.59 (0.35-1.00) | 0.050 | 3-Methylhistidine | 1.83 (1.07-3.13) | 0.027 | Ornithine | 1.56 (0.93-2.63) | 0.091 | Phenylalanine | 2.06 (1.19-3.57) | 0.010 | Phosphoethanolamine | nc | nc | Proline | 1.63 (0.92-2.88) | 0.092 | Sarcosine | 1.54 (0.91-2.62) | 0.107 | Serine | 2.71 (1.39-5.31) | 0.004 | Threonine | 0.67 (0.41-1.11) | 0.121 | Tryptophan | 0.68 (0.39-1.19) | 0.175 | Tyrosine | 1.52 (0.82-2.82) | 0.187 | Valine | 1.30 (0.74-2.29) | 0.360 |
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aHazard ratio adjusted for age, sex, stage, treatment type, smoking status, and alcohol drinking status; nc: not computable.
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