... treatment amphetamine was the single most common substance of abuse in Sweden nationally as well as in the local area, where 3 5-4 5% of the drug abusers had amphetamine as the most prevalent substance ... non-substantial, as they were related to contributing and not underlying causes of death, and the final coding was based on a mutual agreement Drug related death Death was drug related in 120 of ... 194 7-1 997 Acta Psychiatrica Scandinavica 2005, , 111: 44 4-4 52 41 Nyhlén A, Fridell M, Hesse M, Krantz P: Causes of premature mortality in Swedish drug abusers: A prospective longitudinal study 197 0- 2006...