Table 3.

Characteristics of the interventions.

Study	Intervention name	Length (weeks), total number of sessions	Guided versus unguided	Guided—description	Digital means	Intervention delivery format
Obikane et al [43], 2021	SmartMama	12, 12	Guided (psychotherapists)	Provided participants with feedback Answered participants’ questions about the intervention	Web-based app for smartphones	Not reported
O’Mahen et al [41], 2013	Postnatal iBAa	15, 11	Unguided	N/Ab	Web based (Netmums site)	Multimedia presentations Web-based materials Web-based homework Possibility to access weekly web-based real-time “clinics” Web-based chat room moderated by parent supporters
O’Mahen et al [42], 2013; O’Mahen et al [45], 2014; Bagnall [46], 2014	NetmumsHWD	17, 12	Guided (mental health workers)	Answered participants’ questions about the intervention Support the overcoming of barriers to the implementation of the intervention	Web based (Netmums site)	Multimedia presentations Web-based materials Web-based homework Possibility to access weekly web-based real-time “clinics” Web-based chat room moderated by peer supporters
Singla et al [44], 2021	Behavioral activation	6-8, 6-8	Guided (nonspecialists and specialists)	Delivers the intervention Addresses treatment barriers and facilitators	Telemedicine	Zoom (Zoom Video Communications Inc.) or WebEx video calls
Singla et al [47], 2022	Behavioral activation	Not reported, 8	Guided (trained psychologists)	Delivered the intervention Addresses treatment barriers and facilitators Accounted for COVID-19 and racial injustice worries	Telemedicine	Zoom or WebEx video calls

^aiBA: internet-based Behavioral Activation.

^bN/A: not applicable.