Development of text messages targeting healthy eating for children in the context of parenting partnerships

Aim: There has been an increase in the use of text messaging to deliver and support health interventions. The aim was to develop a bank of text messages targeting healthy eating for children in the context of parenting partnerships that could be used in a family intervention. Methods: Text messages were developed using the Theoretical Domains Framework and Behaviour Change Wheel COM-B model by study investigators using a three phase approach; i) initial development of a message bank, ii) messages were reviewed and evaluated by experts and parents on their clarity, usefulness, and relevance using a 5-point Likert scale and open text spaces for additional feedback, and iii) refinement of messages content and finalised the message bank. Results: Messages were reviewed for ‘clarity’, ‘usefulness’, and ‘relevance’ by 20 parents and 28 health experts, who were predominantly female (92%), parents of primary school age children (33%), of low to middle socioeconomic status (78%), with a mean age of 39 years (SD ± 9.87). From an initial set of 97 messages developed, 48 messages were retained through consultation. Messages were designed to complement the intervention, while engaging both parents. Conclusions: The three-phase development created a set of text messages acceptable to experts and parents that aim to support improvement in child eating behaviours. The process provides a template and practical guide for researchers and health providers looking to apply a systematic approach to text messages development. Future research should investigate acceptability and impact of these messages as a component of family-based nutrition intervention.