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Is organizational intervention using Layered Voice Analysis (LVA) effective in addressing operator mental health in call centers?

Is organizational intervention using Layered Voice Analysis (LVA) effective in addressing operator mental health in call centers? - Is organizational intervention using Layered Voice Analysis (LVA) effective in addressing operator mental health in call centers?

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000051352
Enrollment
100
Registered
2023-06-15
Start date
2023-06-15
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Mental health

Interventions

The participatory approach group by LVA. (Baseline-12weeks) Line care from supervisor using LVA. (Baseline-12weeks) Normal line care from supervisor. (Baseline-12weeks) Active control. (Baseline-12wee

Sponsors

University of Occupational and Environmental Health, Japan
Lead Sponsor
ES JAPAN Corporation CENTRIC Corporation
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: a) Department: call center operators working in Operations Section 1 and Operations Section 2. b) Age: working-age population (18-64y). c) Gender: any gender. d) Length of service: 3 months or more (because many job mismatchers leave within 3 months).

Exclusion criteria

Exclusion criteria: a) Persons attending a hospital for mental illness at the start of the survey. b) Managers (section chiefs, deputy section chiefs, chiefs, etc.) and leaders of each team.

Design outcomes

Primary

MeasureTime frame
CES-D (The Center for Epidemiologic Studies Depression Scale)

Secondary

MeasureTime frame
UWES (Utrecht Work Engagement Scale), WHO-HPQ (Health and work Performance Questionnaire), PSQI (pittsburgh sleep quality index), Unidentified complaint (eg., headache, neck pain, dizzy, low back pain), Work motivation and performance (eg., Call Per Hour, Average Handing Time)

Countries

Japan

Contacts

Public ContactTakeshi Ebara

Institute of Industrial Ecological Sciences, University of Occupational and Environmental Health Department of Ergonomics

ebara@med.uoeh-u.ac.jp093-691-7458

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026