Abstract:
:In Italy, Workplace Drug Testing (WDT) has been compulsory by law for specific categories of workers since 2008, offering the opportunity to compare studies conducted within a single regulatory framework. The aims of this paper are to estimate the overall prevalence of WDT positivity (at screening survey) among Italian workers and evaluate the percentage of true and false positives at confirmation analysis. A systematic review and meta-analysis of the scientific literature on WDT in Italy from January 2008 to March 2015 was carried out, according to the MOOSE guidelines. A random effects model was utilized to calculate pooled prevalence. Potential sources of heterogeneity were explored using sensitivity test and subgroup analysis. The overall meta-analytical prevalence of positivity at WDT among Italian workers was 1.4% [95% confidence interval (CI) = 1.1-1.7%]. It was significantly lower among workers screened with an on-site test (1%; 95% CI = 0.5-1.5%), compared with a bench-top test (1.7%; 95% CI = 1.3-2.1%). Nine studies provided data on false positives at the screening test, with a combined prevalence estimate - calculated on positive cases - of 30% (95% CI = 16-44%). In Italy, the number of true positives at first-level workplace drug testing is low, while the frequency of false positives is relatively high. A revision of the Italian legislation on the subject seems advisable. Copyright © 2017 John Wiley & Sons, Ltd.
journal_name
Drug Test Analjournal_title
Drug testing and analysisauthors
Rosso GL,Montomoli C,Morini L,Candura SMdoi
10.1002/dta.2189subject
Has Abstractpub_date
2017-06-01 00:00:00pages
844-852issue
6eissn
1942-7603issn
1942-7611journal_volume
9pub_type
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