Table 1.

Core components of the chatbot intervention.

Component	Description
Psychoeducation	Health anxious thoughts and behaviors, importance of managing health anxiety
CBTa five-part model	Introduction to different components of the model and the relationships between the components
Cognitive restructuring and thinking errors	Aid identification and naming of unhelpful thinking patterns
Anxiety reduction	Mindfulness, relaxation, delaying worry exercises (eg, worry time)
Exposure	Discuss the importance of having an opportunity to endure anxiety, complete exposure ladder

^aCBT: cognitive behavioral therapy