Table 4 Comparing urine and blood LC-MS/MS positivity rate (N = 74)
LC-MS/MS Result | Frequency (%) |
|---|---|
No detected substance in urine and blood | 27 (36%) |
Same substance detected in urine and blood | 21 (28%) |
Different substance detected in urine and blood | 4 (5%) |
Substance detected in urine and blood, but more substances found in urine | 7 (9%) |
Substance detected in urine and blood, but more substances found in blood | 3 (4%) |
Substance detected in urine but not in blood | 11 (15%) |
Substance detected in blood but not in urine | 1 (1%) |
Total | 74 (100%) |