Table 4.
CSF metabolite combinations for correlating aging process based on Akaike Information Criterion (AIC) estimation
| CSF metabolite combinations | Akaike Information Criterion (AIC)# | ||
|---|---|---|---|
|
| |||
| Comparison | Young vs. Middle | Middle vs. Old | Young vs. Old |
| CSF Glucose | 72.94 | 60.59 | 55.06 |
| Alanine | 68.40 | 57.49 | 38.49 |
| Citrate | 66.08 | 60.83 | 37.27 |
| Creatinine | 62.08 | 55.77 | 32.71 |
| Lactate | 71.21 | 59.86 | 50.95 |
| Leucine | 61.27 | 59.91 | 43.69 |
| Tyrosine | 63.52 | 59.89 | 43.66 |
| Valine | 55.66 | 60.74 | 30.18 |
| Leucine, Tyrosine | 55.18 | 71.65 | 28.32 |
| Citrate, Valine, Leucine | 49.07 | 71.23 | 28.56 |
| Citrate, Leucine, Tyrosine, Valine | 49.98 | 71.78 | 27.59 |
| Citrate, Lactate, Leucine, Tyrosine, Valine | 48.97 | 73.67 | 28.94 |
| Alanine, Citrate, Lactate, Leucine, Tyrosine, Valine | 49.63 | 70.94 | 29.69 |
| Alanine, Citrate, Creatinine, Lactate, Leucine, Tyrosine, Valine | 51.06 | 63.01 | 29.64 |
#
AIC value was calculated using logistic regression model.