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Number of deaths due to intoxication in the study population distributed among substance groups
| Substance | n (%) |
|---|---|
| Heroin | 40 (22.2) |
| Methadone | 82 (45.6) |
| Buprenorphine | 30 (16.7) |
| Fentanyla,b | 28 (15.6) |
| Total | 180 (100) |
aIncluding seven cases where fentanyl findings consisted of acrylfentanyl, acetylfentanyl or furanylfentanyl
bFentanyl is prescribed as patches, tablets and nasal spray in Sweden
