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An Individualized TTM-Based Intervention Promotes Child Safety Seat Purchase Among Pregnant Women: A Randomized
Weichen Yao1, Feng Wu1, Jingzhen Yang1
1Weichen Yao is with the School of Public Health, Shantou University, Shantou, China. Feng Wu, Yueliang Chen, Ziyue Tan, and Liping Li are with the Injury Prevention Research Center, Shantou University Medical College, Shantou, China. Jingzhen Yang is with the Center for Injury Research and Policy, The Research Institute at Nationwide Children's Hospital, Columbus, OH.
Abstract:
This study evaluated a transtheoretical model (TTM)-based intervention's effectiveness in improving child safety seat (CSS) purchasing behaviors. A randomized controlled trial assigned 414 pregnant women to TTM, child passenger safety education, and control groups. At three, six, and 12 months after the intervention, the intervention groups showed significant improvements in CSS purchase rates and behavioral stage progression from baseline compared with the control group, with the TTM group showing the greatest effect. These findings may inform future efforts to promote CSS use and behavioral change. (Am J Public Health. 2025;115(12): 1963-1966. https://doi.org/10.2105/AJPH.2025.308248).
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