Table 4 Classification of patients according to level of tramadol in urine assay and its relation to serum level of IL-2 in them
From: Association between opioid use disorder (tramadol) and serum level of interleukin-2
Patients with urine assay of tramadol 50–200 ng/ml (n = 17) | Patients with urine assay of tramadol > 200 ng/ml (n = 42) | t test | P value | |
|---|---|---|---|---|
Mean ± SD | Mean ± SD | |||
Serum level of IL2 | 312.93 ± 27.69 | 357.79 ± 35.25 | 4.686 | 0.000 |