Authors | Country | mHealth Delivery Mode | Target Population | Study Design | Sample Sizea (Intervention/Control) | Frequency and Duration | Posttest and Follow-Up |
---|---|---|---|---|---|---|---|
Johnson et al.18 | Kenya | HE via text messaging, “role model” stories, clinic database | General public | RCT (probably unblinded)b | 13,629 (6,817/6,812) | Over 3 months | 24 hours, 6 days, 3 months postenrollment |
Maslowsky et al.19 | Ecuador | Telephone-delivered HE and telephone access to a nurse | Postpartum women | Unblinded RCT | 178 (102/76) | Within 48 hours of hospital discharge. Access to a nurse on-call during the first 30 days of the newborn’s life | 3 months after delivery |
McCarthy et al.20 | Tajikistan | HE via app instant messaging | Young people (16–24), both genders | Single-blinded RCT | 543 (275/298) | 0–3 messages per day over 4 months | 4 months after baseline |
McCarthy et al.21 | Palestine | HE via text messaging | Young women (18–24) | Single-blinded RCT | 578 (289/289) | 0–3 messages per day over 4 months | 4 months after baseline |
Smith et al.22 | Cambodia | Voice messages and phone calls | Women, postabortion | Single-blinded RCT | 300 (249/251) | 6 automated voice messages ± telephone counseling within 3-month period | 4 and 12 months postabortion |
Unger et al.23 | Kenya | HE via text messaging | Postpartum women | 3-arm, unblinded RCT | 300 (100/100/100) | Weekly until 12 weeks postpartum | From antenatal care attendance and followed through 10, 16, 24 weeks postpartum |
Biswas et al.24 | Bangladesh | HE via text messaging | Women, postabortion | RCT (probably unblinded)b | 120 (60 /60) | Method-specific reminders/intervals (daily/weekly) | 4 months postabortion |
Harrington et al.25 | Kenya | HE via text messaging | Postpartum women | Unblinded RCT | 254 (125/129) | Weekly from enrollment to 6 months postpartum | 6 months postpartum |