The development of a standard method for participatory improvement of the workplace environment at small-sized enterprises: randomized controlled trial

The development of a standard method for participatory improvement of the workplace environment at small-sized enterprises: randomized controlled trial - The development of a standard method for participatory improvement of the workplace environment at small-sized enterprises: randomized controlled trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000028829

Enrollment

500

Registered

2017-08-25

Start date

2017-06-07

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

depressive symptoms

Interventions

Intervention group: implement the workplace environment improvement program for 3 months. Control group: after completing the workplace environment improvement program of the intervention group, imple

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Workers working at small-sized enterprises 2. Study participants with consent

Exclusion criteria

Exclusion criteria: 1. Study participants without consent

Design outcomes

Primary

Measure	Time frame
Changes of indicator related to psychosomatic stress reaction at 3 months after the start of intervention.	—

Secondary

Measure	Time frame
Changes of indicator related to job stressor and psychosocial support at 3 months after the start of intervention.	—

Countries

Japan

Contacts

Public ContactAyako Hino

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

ayako-hino@med.uoeh-u.ac.jp093-691-7475

Outcome results

None listed

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