Quantitative Validation of Questionnaires on Use of Tobacco and Nicotine Containing Products from the Perspectives of Adult Users and Their Adult Relatives in Japan

Quantitative Validation of Questionnaires on Use of Tobacco and Nicotine Containing Products from the Perspectives of Adult Users and Their Adult Relatives in Japan - Quantitative Validation of Questionnaires on Use of Tobacco and Nicotine Containing Products from the Perspectives of Adult Users and Their Adult Relatives in Japan

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000058508

Enrollment

200

Registered

2025-07-21

Start date

2025-07-21

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

Healthy subjects

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Inclusion Criteria for TNP Users: -Residing in Japan and able to speak/read Japanese language for the survey -Age >=30 years at the time of consent -Current/former cigarette (CIG) smoker and/or heated tobacco product (HTP) user (i.e., IQOS, Glo, Ploom) -Capable of submitting an electronic informed consent to participate in the study Inclusion Criteria for Relatives of TNP Users: -Residing in Japan and able to speak/read Japanese language for the survey -Age >=18 years at the time of consent -Relatives of TNP users and living in the same house with TNP users -Capable of submitting an electronic informed consent online to participate in the study

Exclusion criteria

Exclusion criteria: Exclusion Criteria for TNP Users and Relatives: -Those who participated in the qualitative validation (an interview conducted prior to this survey) as a content validation for TEQ and RQ. -Having more than one pair of TNP user and his/her relative living in the same household.

Design outcomes

Primary

Measure	Time frame
Quantitative evaluations will be performed to assess measurement properties of the questionnaires, including reliability and validity. For reliability, we will assess test-retest reliability to evaluate the consistency of responses to the same questions from the same set of adult participants within a short interval. For convergent validity (concordance), responses from adult relatives of adult TNP users will be compared to those from the adult TNP users themselves, evaluating the agreement between responses to questions that ask for the same information.	—

Measure

Time frame

Quantitative evaluations will be performed to assess measurement properties of the questionnaires, including reliability and validity. For reliability, we will assess test-retest reliability to evaluate the consistency of responses to the same questions from the same set of adult participants within a short interval. For convergent validity (concordance), responses from adult relatives of adult TNP users will be compared to those from the adult TNP users themselves, evaluating the agreement between responses to questions that ask for the same information.

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Countries

Japan

Contacts

Public ContactXiaohe Tang

Syneos Health Japan K.K. Real World Research

xiaohe.tang@syneoshealth.com03-6733-9690

Outcome results