Drug screening for psychoactive substance abuse during pre-enrolment medical evaluation

Objectives: Concerns about illicit drug use in the workplace have prompted an increased interest in urinalysis for detecting and preventing drug use. This has led to widespread adoption, driven by technical advancements in testing methods and a growing demand for drug testing. In numerous countries, including the United States (U.S.), pre-enrolment and ongoing drug testing are common practices including in the Armed Forces. The U.S. Navy, in particular, has a rigorous and successful drug testing program for various substances. Contrastingly, the Indian Armed Forces currently do not conduct pre-entry screening for psychoactive drug abuse, and there is a lack of data on the extent of the issue among serving personnel. This study aims to address this gap by screening candidates for pre-enrolment and applying for aviation duties during medical evaluation. Material and Methods: Employing a urinalysis-based multidrug kit, the study screened 960 candidates in total for multiple drugs of abuse which including amphetamines, barbiturates, benzodiazepines, cocaine, opiates, and cannabis in an anonymous manner. Results: This study analyzed 960 samples, with 68% from candidates applying for pre-enrolment and 32% from in service candidates seeking aviation roles. Our study result showed a single positive case involved, who was a male candidate applying for pre-enrolment and tested positive for barbiturates, resulting in a 0.1% overall prevalence, with 0.15% in pre-enrolment and none in the in-service group. Conclusion: Given the extremely low prevalence (0.1%) of drug use identified, and considering the limitations of the methodology, including possible behavioral adaptation and lack of confirmatory testing, routine screening may not be justified at present. However, unannounced or alternative testing approaches may yield more reliable insights into actual prevalence.