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A Community-based Depression Screening Intervention for Middle-aged Suicide

Impact of a Community-based Screening and Educational Intervention for Depression on Suicide Rates Among Japanese Middle-aged Adults

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02468466
Enrollment
89700
Registered
2015-06-10
Start date
2005-01-31
Completion date
2012-12-31
Last updated
2015-06-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Suicide

Keywords

suicide, prevention

Brief summary

The purpose of this study is to examine the effectiveness of a community-based depression-screening program for suicide prevention among middle-aged adults, the investigators conducted a quasi-experimental intervention study, using a parallel cluster design with communities at municipal level as the unit of allocation and individuals as the unit of analysis.

Detailed description

Suicide is a major cause of premature death, particularly among middle-aged adults, in the majority of Western and Asian countries. A strong association of suicide and depression often indicates the necessity of a high-risk approach for suicide prevention. Improvements in identification and treatment can lead to better depression outcomes and suicide prevention. The investigators hypothesize that a 4-year community-based intervention, consisting of universal depression screening and subsequent care support in the target areas and health education programs, would result in reduced suicide rates among the middle-aged adult population in areas with a high suicide rate.

Interventions

Usual mental health program (not including depression screening among middle-aged)

BEHAVIORALMulti-level suicide prevention programs

The intervention included both screening and educational components. The screening component invited residents aged 36-64 years to participate in a two-step screening program. In the initial screening, a self-report questionnaire were mailed to all of those residents in the priority districts with a past high suicide rate. The second stage was conducted for the participants who screened positive though a semi-structural interview. Based on the results, participants who were diagnosed with a major depressive episode were provided with a referral to a psychiatry and support for treatment adherence. Written feedback on the screening results was mailed to all respondents. The educational component was implemented through workshops open to the general public (3 times every year) and local public newsletters (twice every year) designed to improve access and adherence to treatment and to reduce stigma associated with suicide and depression.

Sponsors

Aomori University of Health and Welfare
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
36 Years to 64 Years
Healthy volunteers
No

Inclusion criteria

* A municipal area located in the following 4 Aomori Second Medical Zones: Hachinohe, Kamitosan, Aomori, and Tsugaru. * A municipal area with the higher suicide rate than the prefectural average. * A municipal area having the sufficient and coverable size to serve the intervention (population 10,000-99,999).

Exclusion criteria

* A municipal area receiving further intervention including a depression screening for middle-aged adults.

Design outcomes

Primary

MeasureTime frame
Change in suicide rates among adults aged 40-64 years between the 4-year pre- and implementation periods.4 years pre versus 4 years post

Secondary

MeasureTime frame
Invitation rate in the screening component4 years post
Participation rate in the screening component4 years post

Countries

Japan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026