Japan: share of drug-dependent patients by substance

According to a survey conducted from September to October 2022 in Japan, around half of nearly 2.5 thousand patients with mental disorders related to drug abuse were dependent mainly on stimulant drugs. Sleeping pills and antianxiety agents were the main reason for becoming drug-dependent for close to 18 percent of patients treated at psychiatric facilities.

Distribution of patients with drug abuse-related mental and behavioral disorders based on the mainly-dependent drug in Japan in 2022

Characteristic	Share of patients
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Release date

May 2023

More information

Region

Japan

Survey time period

September 1 to October 31, 2022

Number of respondents

2,468 patients*

Method of interview

Postal questionnaire

Supplementary notes

*The survey was conducted among 221 psychiatric facilities across Japan. Attending doctors of 2,468 patients who received inpatient or outpatient treatments at respective facilities responded to the survey question.

Patients were diagnosed with mental and behavioral disorders due to psychoactive substance use, excluding alcohol use, based on the International Classification of Diseases, Tenth Revision (ICD-10-CM) designated by the World Health Organization (WHO.)

**Including antitussive agent, drug for the common cold, analgesic, sleeping pill, etc.
For prescription drugs and medicines, the patients used (abused) them for non-treatment purposes.

Missing percentage points to 100 percent are probably due to rounding.

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