Abstract
BACKGROUND: Smoking prevalence and limited access to cessation support contribute to persistent health inequities among (expectant) parents in vulnerable situations. Co-creation may help align smoking cessation support with the lived contexts and needs of this group. This study documents and evaluates the use of co-creation to explore contextual barriers and needs, and to inform adaptations to Smoke-free Parents (SFP), a Dutch telephone-based smoking cessation programme. METHODS: Five co-creation sessions were conducted with (expectant) parents, smoking cessation counsellors, healthcare professionals, and researchers. Activities included photo-based brainstorming, peer interviews, creating fictional user profiles, and user journey mapping. Participants identified barriers to engagement with SFP and retention in SFP, brainstormed adaptations, and prioritized these. Data were thematically analysed. The co-creation process and its outputs were evaluated through interviews and a group discussion. RESULTS: Three parents, two counsellors, two healthcare professionals, and two researchers participated. Identified contextual barriers included stressful life circumstances, pro-smoking social norms, shame, fear of failure, and limited discussion of smoking and cessation support with professionals. Participants highlighted the need for accessible and personalized services and involving social networks. Proposed adaptations included raising awareness of SFP among professionals and (expectant) parents, offering more diverse forms of coaching (telephone, video call, group, face-to-face), and facilitating involvement of partners or other supportive persons. Participants evaluated both the co-creation process and outcomes positively (mean satisfaction score 8.3/10). CONCLUSIONS: This study illustrates how co-creation can be used to explore context and needs related to smoking cessation support among (expectant) parents in vulnerable situations, and to inform adaptations. Wider use of such co-creation approaches may support more equitable access to cessation support. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12889-026-26633-9.