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.
BMJ Open. 2022 Dec 20;12(12):e064229. doi: 10.1136/bmjopen-2022-064229.
We examined whether providing educational events for participants in a birth cohort study would increase the response rates of study questionnaires.
Birth cohort study.
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).
The participants were 5379 mother-child pairs registered with the Toyama Regional Center of the Japan Environment and Children's Study (JECS).
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.
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).
Providing educational events that are appropriate to the age and needs of the participants may increase questionnaire response rates in birth cohort studies.
UMIN 000030786.
我们考察了为参加队列研究的参与者举办教育活动是否会提高研究问卷的回复率。
队列研究。
在一年内通过邮寄方式两次分发和回收问卷。我们开发并实施了两个教育课程;一次针对 8 个月左右孩子的母亲的婴儿食品讲座(分析 1),以及一次针对 1 岁 8 个月左右孩子的母亲的 eurhythmy 课程(分析 2)。未邀请年龄超过目标的母亲(未邀请组)。受邀参加者分为三组:未申请参加者(未申请组)、申请但未参加者(申请组)和申请并参加者(参加组)。
5379 对母婴对参加了日本环境与儿童研究(JECS)富山地区中心的注册。
婴儿食品讲座后寄出的 1 岁 JECS 问卷和 eurhythmy 课后寄出的 2 岁 JECS 问卷的 1 年回复率。问卷通过邮寄寄回给我们。
婴儿食品讲座参加组的回复率为 99.7%,与未邀请组相比,该组的优势比(OR)显著更高(粗 OR 24.54;95%置信区间(CI)3.42 至 176.13;分析 1)。在排除之前参加过婴儿食品讲座的参与者后,eurhythmy 课程参加组的回复率为 97.8%,与未邀请组相比,该组的 OR 显著更高(调整后的 OR 5.66;95%置信区间 1.93 至 16.54;分析 2)。
提供适合参与者年龄和需求的教育活动可能会提高队列研究中的问卷回复率。
UMIN 000030786。