Table 2.
Comparison between pre- and postintervention plasma tryptophan level and GDS between the 10 mg/kg BW eel's head powder group, 5 mg/kg BW eel's head powder group, and placebo group.
| Variables | Groups | p value | ||
|---|---|---|---|---|
| 10 mg/kg | 5 mg/kg BW | Placebo | ||
| N = 11 (in mcg/ml) | N = 14 (in mcg/ml) | N = 11 (in mcg/ml) | ||
| Pretest plasma tryptophan level | ||||
| Mean ± SD | 6.80 ± 1.78 | 6.75 ± 2.43 | 7.79 ± 2.38 | 0.466 |
| Range (min–max) | 4.30–10.81 | 3.63–10.75 | 4.41–13.67 | |
|
| ||||
| Posttest plasma tryptophan level | ||||
| Mean ± SD | 8.66 ± 0.93 | 7.23 ± 1.95 | 6.64 ± 1.37 | 0.012 ∗∗ |
| Range (min–max) | 7.10–10.39 | 4.27–10.84 | 4.98–8.93 | |
|
| ||||
| Pretest GDS | ||||
| Mean ± SD | 6.90 ± 1.375 | 7.00 ± 1.519 | 7.00 ± 1.897 | 0.983 |
| Range (min-max) | 5.00–9.00 | 5.00–10.00 | 5.00–10.00 | |
|
| ||||
| Posttest GDS | ||||
| Mean ± SD | 5.72 ± 0.78 | 6.85 ± 1.29 | 7.36 ± 1.50 | 0.012 ∗∗ |
| Range (min–max) | 5.00–7.00 | 4.00–9.00 | 5.00–9.00 | |
For continuous variables, data were analysed using one-way ANOVA test if the distribution was normal and had homogenous variants, and Kruskal–Wallis test was used for nonnormally distributed data. The p value of <0.05 was considered statistically significant. ∗∗Statistically significant p value of <0.05.