Effects of monetary incentive on choices of healthy dishes in restaurants: open-labeled non-randomized before-after trial

Effects of monetary incentive on choices of healthy dishes in restaurants: open-labeled non-randomized before-after trial - Effects of monetary incentive on choices of healthy dishes in restaurants

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000022396

Enrollment

5000

Registered

2016-05-31

Start date

2016-06-01

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

Low vegetable intake

Interventions

Intervention period: campaign of 50-yen-discount of the vegetable-rich menus is hold for a week after control period. Control period: The vegetable-rich menus are sold with regular price for a week.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: None

Exclusion criteria

Exclusion criteria: People who cannot read Japanese

Design outcomes

Primary

Measure	Time frame
Ratio of the order of vegetable-rich menus in intervention sessions compared to control	—

Secondary

Measure	Time frame
Before-after differences in the proportions of sociodemographic characteristics among those who ordered vegetable-rich menus.	—

Countries

Japan

Contacts

Public ContactWataru Nagatomo

The University of Tokyo Department of Health Sociology and Health Education, School of Public Health, Graduate School of Med

wnagatomo-tky@umin.ac.jp03-5841-3514

Outcome results

None listed

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