Treatment | Mean | Median | S.E. | Mann–Whitney |
---|
Freeze-dry | 5.18 | 6.03 | 0.45 | – |
Fresh | 1.00 | 1.03 | 0.02 | <0.001 |
HCl | 5.96 | 6.15 | 0.35 | 0.231 |
NaCl | 0.99 | 1.02 | 0.02 | <0.001 |
NaOH | 2.97 | 2.82 | 0.09 | <0.001 |
Frozen | 0.99 | 1.06 | 0.05 | <0.001 |
- The number of compounds identified by each treatment were normalized by the average number of compounds identified in urine samples analysed fresh (SE = standard error). Mann–Whitney U test compared the number of metabolites reported by each treatment in relation to Freeze-dry