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General hospital admissions in young and middle-aged people who use psychoactive substances: Impact of Covid-19
J Perino1, H Ramaroson2, N Ong2
1University hospital of Bordeaux, Centre d'addictovigilance de Bordeaux, Department of medical pharmacology, Bordeaux F-33000, France; Univ. Bordeaux, INSERM, BPH, U1219, Bordeaux F-33000, France; CHU de Bordeaux, Bordeaux, France.
Backgrounds:
The Covid-19 pandemic offered a unique opportunity to investigate trends in hospitalizations related to psychoactive substance intoxication, since the usual health burden of social use at parties and gatherings was likely to be decreased during lockdowns and curfew periods. Since young adults are the main users of psychoactive substances for experimental and recreational purposes, this study identified and compared hospitalization trends in young adults and adults over 30 years old.
Methods:
This national cohort study was conducted using the French hospital discharge database. An interrupted time-series analysis for the period between 2014 and 2020 was performed in two groups: young (age 18-29) and other adults (30+) to ascertain the trends in the monthly incidence of hospitalization related to psychoactive substance intoxication (opiates, cocaine, benzodiazepines, psychostimulants, alcohol and cannabis). Hospitalization characteristics during the first and second lockdown and the period between them were compared to the reference period (from 01/01/2014 to 29/02/2020).
Results:
Among 1,358,007 stays associated with psychoactive substance intoxication, 215,430 concerned young adults. Compared with adults 30+, hospitalization trends in young adults showed a greater decrease in the number of stays during lockdown, with a maximum decrease of -39% during the first lockdown (1,566 vs. 2,576; CI95%: 2,285-2,868) versus -20% (10,212 vs. 12,894; CI95%: 12,001-13,787) in the second lockdown. Presentations for alcohol intoxication decreased throughout the pandemic, particularly during the second lockdown, while admissions for benzodiazepine intoxication increased during both lockdowns. Admissions for cannabis intoxication increased throughout the entire period.
Conclusions:
Lockdowns were associated with fewer hospitalizations related to psychoactive substance intoxication in both age groups, especially among young adults, which might reflect a decrease in social use. Recreational use might therefore be an important target for prevention and risk minimization.
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