Table 2.

Facilitating factors and barriers to intervention uptake and engagement^a.

	Facilitating factors	Barriers
Uptake	Weak evidence for demographic factors Greater education Women White Breast cancer diagnosis	Anxiety around technology Perceived time burden
Engagement	Tailoring and customizability of the intervention Demographic factors Younger age Women Being married Greater experience with the internet Email messages and reminders	Difficulties with technology Participant clinical profile Greater fatalism Poorer coping with anxiety Less impairment caused by pain Perceived time burden Lack of satisfaction with the intervention

^aOwing to the paucity of relevant quantitative data in the included reviews, the factors influencing uptake and engagement were identified by extracting narrative syntheses from each review.