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Distribution of BLL ≥ 100 μg/L between the studied groups
| Groups | N (%) | BLL < 100 | N (%) | BLL ≥ 100 | P value |
|---|---|---|---|---|---|
| Opium addicts | 23 (9.7) | 62.61 ± 4.63 | 10 (30.3) | 121.00 ± 6.16 | 0.047 |
| Methadone users | 29 (87.9) | 60.76 ± 3.09 | 4 (12.1) | 120.00 ± 6.33 | |
| Healthy Controls | 30 (90.9) | 51.40 ± 3.70 | 3 (9.1) | 116.33 ± 9.86 |
Data were presented as mean ± standard error.
