The investigation of asthma prevalence in people over 17 years old by a questionnaire and measurements of fractional exhaled NO

The investigation of asthma prevalence in people over 17 years old by a questionnaire and measurements of fractional exhaled NO - The investigation of asthma prevalence by a questionnaire and measurements of fractional exhaled NO

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000003244

Enrollment

500

Registered

2010-02-23

Start date

2010-03-01

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

Bronchial asthma

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: People over 17 years old

Exclusion criteria

Exclusion criteria: None

Design outcomes

Primary

Measure	Time frame
The ratio of people whose exhaled NO levels are higher than 38 ppb in people over 17 years old.	—

Secondary

Measure	Time frame
The relation between wheeze and fractional exhaled NO in people over 17 years old	—

Countries

Japan

Contacts

Public ContactTamotsu Ishizuka

Department of Medicine and Molecular Science Gunma University Graduate School of Medicine

tamotsui@showa.gunma-u.ac.jp027-220-8123

Outcome results