TY - JOUR PY - 2016// TI - Population surveys compared with wastewater analysis for monitoring illicit drug consumption in Italy in 2010-2014 JO - Drug and alcohol dependence A1 - Zuccato, Ettore A1 - Castiglioni, Sara A1 - Senta, Ivan A1 - Borsotti, Andrea A1 - Genetti, Bruno A1 - Andreotti, Alessandra A1 - Pieretti, Giovanni A1 - Serpelloni, Giovanni SP - 178 EP - 188 VL - 161 IS - N2 - BACKGROUND: Monitoring consumption by population surveys (PS) is an important way to challenge the spread of illicit drugs (ID). To improve the information, we explored a complementary method, particularly wastewater analysis (WWA).

METHODS: We estimated the prevalence of use by PS, and the consumption by WWA, of cocaine, opioids, cannabis, methamphetamine and MDMA (ecstasy) from 2010 to 2014 in Italy and compared the results.

RESULTS: According to PS, cannabis and cocaine were the ID most used in Italy (last month prevalence 3.0% and 0.43% respectively in 2010) followed by opioids (0.17%) and amphetamines (0.14%). WWA gave similar findings, with cannabis consumption (4.35g THC/day/1000 inhabitants) exceeding cocaine (0.78g), heroin (0.092g), methamphetamine and MDMA (0.103g). The time trend investigated by PS showed significant decreases for all ID from 2010 to 2012. WWA also indicated a reduction of consumption for methamphetamine (p<0.0001) and heroin (p<0.01). Both methods showed an increase for cannabis in 2014 (p<0.001) with the other ID unchanged. Spatial investigations by WWA showed that cannabis and cocaine were consumed significantly more in central Italy than in the north and south. PS indicated the same but only for cannabis. WWA was helpful to study weekly patterns of consumption, showing increases in cocaine and MDMA at weekends.

CONCLUSIONS: PS and WWA were confirmed as complementary methods and when used together improved the information on ID use in Italy. We suggest that the combined use of the two approaches can give better information on ID use in the population.

Language: en

LA - en SN - 0376-8716 UR - http://dx.doi.org/10.1016/j.drugalcdep.2016.02.003 ID - ref1 ER -