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Color Spot Test As a Presumptive Tool for the Rapid Detection of Synthetic Cathinones

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Published on: February 5, 2018

Detection of hidden populations using illicit substances.

Shyh-Yuh Wei¹, Brian Meng-Hsun Li^2,3, Hsuan-Yun Hu⁴

¹Department of Psychiatry, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.

Journal of Epidemiology and Community Health

|April 23, 2025

Summary

Hidden populations using illicit drugs are often underestimated. This study reveals unregistered individuals, particularly for NPS, ecstasy, and ketamine, are younger, more female, and employed, highlighting the need for better detection and polydrug use awareness.

Keywords:

ACCIDENTS DEATH EPIDEMIOLOGY HIV SUBSTANCE ABUSE

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Fentanyl Analog Screening using LC-TIMS-TOF MS/MS

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Published on: November 8, 2024

Area of Science:

Forensic Toxicology
Public Health
Epidemiology

Background:

Hidden populations using illicit substances pose challenges in accurately assessing health and social impacts.
Underestimation of drug use prevalence can lead to inadequate public health interventions.

Purpose of the Study:

To precisely estimate the prevalence and characteristics of hidden populations using illicit drugs.
To develop a methodology for identifying and characterizing unregistered drug users.

Main Methods:

Linked national autopsy and police arrest databases in Taiwan (2013-2019).
Included individuals with positive drug results at autopsy (heroin, methamphetamine, ketamine, ecstasy, NPS).
Identified registered (arrested) and unregistered (no arrest record) individuals (2010-2019).

Main Results:

The ratio of unregistered to registered individuals varied significantly by drug type, notably high for NPS (174.0), ecstasy (14.8), and ketamine (4.9).
Unregistered individuals were younger, more often female, employed, and had higher blood alcohol levels.
Unregistered individuals accounted for 79% of polydrug use cases detected at autopsy, with 10% having differing substance use records.

Conclusions:

The integrated approach of including registered and unregistered individuals effectively evaluates hidden drug-using populations.
Clinicians must consider potential polydrug use, even with negative single-substance drug tests.