Table 4.

Type of mHealth interventions for the included studies.

Included studies (n = 23)
Mobile health intervention classification
Education/awareness (behavior) (23 , 38 , 40 , 41 , 44 , 46 , 48 –50 , 52 , 53 , 55 , 58)	Communication and training (19, 23, 42, 43, 51–53, 58)	Registries/vital event tracking (36, 43, 45, 51–53, 58)
Outcomes of interest
Neonatal mortality (50, 51)	Skilled birth attendance (38, 39, 42, 45, 48, 58)	Antenatal care attendance (39, 45, 49, 56, 58)	Post-natal care attendance (19, 23, 38, 55, 59)	Vaccination and immunization coverage (40–44, 46, 47, 49, 52, 54, 57)
Modes of intervention delivery
SMS/voice message reminders (38–40, 42–44, 46–50, 55, 57)	Voice calls (41, 43, 54, 56)	Smartphone app (51)	App + SMS/voice reminders (19, 23, 43, 45, 52, 53, 58)	Data collection modules (19, 43, 57, 58)