학술논문
Provision of educational events and subsequent questionnaire response rates in a large-scale birth cohort study from Japan.
Document Type
Academic Journal
Author
Tsuchida A; Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan aktsuchi@med.u-toyama.ac.jp.; Toyama Regional Center for Japan Environment and Children's Study, University of Toyama, Toyama, Japan.; Kigawa M; Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan.; Department of Liberal Arts and Human Development, Kanagawa University of Human Services, Yokosuka, Japan.; Matsumura K; Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan.; Toyama Regional Center for Japan Environment and Children's Study, University of Toyama, Toyama, Japan.; Ito M; Department of Obstetrics and Gynecology, Faculty of Medicine, University of Toyama, Toyama, Japan.; Tanaka T; Toyama Regional Center for Japan Environment and Children's Study, University of Toyama, Toyama, Japan.; Department of Pediatrics, Faculty of Medicine, University of Toyama, Toyama, Japan.; Hamazaki K; Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan.; Department of Public Health, Gunma University Graduate School of Medicine, Maebashi, Japan.; Inadera H; Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan.; Toyama Regional Center for Japan Environment and Children's Study, University of Toyama, Toyama, Japan.
Source
Publisher: BMJ Publishing Group Ltd Country of Publication: England NLM ID: 101552874 Publication Model: Electronic Cited Medium: Internet ISSN: 2044-6055 (Electronic) Linking ISSN: 20446055 NLM ISO Abbreviation: BMJ Open Subsets: MEDLINE
Subject
Language
English
Abstract
Objectives: We examined whether providing educational events for participants in a birth cohort study would increase the response rates of study questionnaires.
Design: Birth cohort study.
Setting: Questionnaires were distributed and returned by post twice in 1 year. We developed and implemented two educational sessions; a Baby Food lecture for mothers with children around 8 months old (analysis 1) and a Eurythmic session for mothers with children around 1 year and 8 months old (analysis 2). Mothers with children over the target ages were not invited (not-invited group). The invited participants were divided into three groups: those who did not apply to attend (not-applied group), those who applied but did not attend (applied group), and those who applied and attended (attended group).
Participants: The participants were 5379 mother-child pairs registered with the Toyama Regional Center of the Japan Environment and Children's Study (JECS).
Outcome Measure: The outcome measure was return of the JECS questionnaire for 1 year old sent out after the Baby Food lecture and the JECS questionnaire for 2 years old sent out after the Eurythmic session. The questionnaires were returned to us by post.
Results: The response rate for the attended group of the Baby Food lecture was 99.7%, and the odds ratio (OR) was significantly higher for this group than for the not-invited group (crude OR 24.54; 95% confidence interval (CI) 3.42 to 176.13; analysis 1). After the exclusion of participants who had previously attended the Baby Food lecture, the response rate for the attended group of the Eurythmic session was 97.8%, and the OR was significantly higher for this group than for the not-invited group (adjusted OR 5.66; 95% CI 1.93 to 16.54; analysis 2).
Conclusion: Providing educational events that are appropriate to the age and needs of the participants may increase questionnaire response rates in birth cohort studies.
Trial Registration Number: UMIN 000030786.
Competing Interests: Competing interests: None declared.
(© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
Design: Birth cohort study.
Setting: Questionnaires were distributed and returned by post twice in 1 year. We developed and implemented two educational sessions; a Baby Food lecture for mothers with children around 8 months old (analysis 1) and a Eurythmic session for mothers with children around 1 year and 8 months old (analysis 2). Mothers with children over the target ages were not invited (not-invited group). The invited participants were divided into three groups: those who did not apply to attend (not-applied group), those who applied but did not attend (applied group), and those who applied and attended (attended group).
Participants: The participants were 5379 mother-child pairs registered with the Toyama Regional Center of the Japan Environment and Children's Study (JECS).
Outcome Measure: The outcome measure was return of the JECS questionnaire for 1 year old sent out after the Baby Food lecture and the JECS questionnaire for 2 years old sent out after the Eurythmic session. The questionnaires were returned to us by post.
Results: The response rate for the attended group of the Baby Food lecture was 99.7%, and the odds ratio (OR) was significantly higher for this group than for the not-invited group (crude OR 24.54; 95% confidence interval (CI) 3.42 to 176.13; analysis 1). After the exclusion of participants who had previously attended the Baby Food lecture, the response rate for the attended group of the Eurythmic session was 97.8%, and the OR was significantly higher for this group than for the not-invited group (adjusted OR 5.66; 95% CI 1.93 to 16.54; analysis 2).
Conclusion: Providing educational events that are appropriate to the age and needs of the participants may increase questionnaire response rates in birth cohort studies.
Trial Registration Number: UMIN 000030786.
Competing Interests: Competing interests: None declared.
(© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)