|
1
|
Bangure et al. (2013)
|
Zimbabwe
|
RCT
|
Women who delivered were recruited into the study at 4 Kadoma city clinics in Mashonal and West province of Zimbabwe
|
304 (152, 152)
|
SMS reminders were sent at 6, 10, and 14 weeks on 7, 3, and 1 day before vaccination due dates. Control group received routine care.
|
14 weeks
|
Immunization coverage at 6, 10, and 14 weeks
|
144/152
|
114/152
|
|
2
|
Schmidt et al. (2012)
|
USA
|
RCT
|
Parents of newborns being discharged from a local hospital who intended to seek child health care at the university-sponsored pediatric resident and faculty clinic
|
68 (28, 40)
|
A text message reminder sent 7 days prior to vaccination schedules. Control group received standard notifications.
|
7 months
|
Receipt of vaccinations due at 2, 4, 6 months of age
|
22/28
|
31/40
|
|
3
|
Dini et al. (2000)
|
USA
|
RCT
|
Households in the Denver metropolitan area whose children had received the first dose of DTP and/or poliovirus vaccines
|
960 (440, 520)
|
Reminder messages sent on due dates of vaccination. Control group has no notifications.
|
24 months
|
Vaccination series completion at 24 months of age
|
217/440
|
213/520
|
|
4
|
Haji et al. (2014)
|
Kenya
|
RCT
|
Children < 12 months of age who were brought to the selected vaccinating health facilities in the three districts of Machakos, Langata and Njoro for their first dose of pentavalent vaccine
|
744 (372, 372)
|
Text reminders sent 2 days before and on the day of the scheduled Vaccination due date. Control group received routine reminder.
|
14 weeks
|
Receipt of scheduled vaccines at 10 and 14 weeks
|
359/372
|
309/372
|
|
5
|
Eze GU et al. (2015)
|
Nigeria
|
Parallel group RCT
|
Paired child-caregivers were followed-up at 8 health facilities in an urban/sub-urban area in South Nigeria
|
905 (452, 453)
|
A text message reminder sent a day before the due date. Control group received routine care.
|
18 weeks
|
DPT3 Coverage at 18 weeks
|
312/452
|
273/453
|
|
6
|
Niederhauser et al. (2015)
|
USA
|
RCT
|
The study enrolled parent/infant dyads recruited from a large federally qualified health center, a Women, Infants and Children clinic, a private pediatric clinic and at the Honolulu Baby Expo
|
42 (19, 23)
|
Text message sent 4 weeks and 2 weeks prior to the due date for the infant’s 2, 4, and 6-month vaccinations. Control group received routine care.
|
7 months
|
5 vaccines (DTaP, HepB, HIB, PCV, and polio) complete coverage at specific ages by group
|
7/19
|
15/23
|
|
7
|
Domek et al. (2016)
|
Guatemala
|
Pilot RCT
|
Infants aged 8–14 weeks presenting for the first dose of the primary immunization series at two public health clinics were enrolled
|
321 (160, 161)
|
SMS text messages at 6, 4, and 2 days before the next scheduled date for visits 2 and 3.
|
7 months
|
Completing all (pentavalent, pneumococcal, polio, and rotavirus) vaccines
|
130/160
|
122/161
|
|
8
|
Gibson et al. (2017)
|
Kenya
|
Clustered RCT
|
Villages were randomly and evenly allocated. Caregivers were eligible if they had a child younger than 5 weeks who had not yet received a first dose of pentavalent vaccine
|
748 (388, 360)
|
SMS reminders sent 3 days and the day before vaccination visits at 6, 10, and 14 weeks and at 9 months. Control group with no SMS service.
|
12 months
|
Full coverage (BCG, three doses of polio, three doses of pentavalent and measles)
|
332/388
|
296/360
|
|
9
|
Hofstetter et al. (2015)
|
USA
|
RCT
|
Parents of 9.5–10.5-month-old children from four urban academically affiliated pediatric clinics
|
1368 (686, 682)
|
Text reminder sent 2 days before the schedule. Control arm with usual care.
|
13 months
|
MMR vaccination by 13 months
|
263/686
|
270/682
|
|
10
|
Stockwell et al. (2012)
|
USA
|
RCT
|
Four community-based clinics in the USA
|
5165 (2576, 2589)
|
Text message reminders sent a month before due date. Control received usual care.
|
12 months
|
Receipt of an influenza vaccine
|
1316/2576
|
1202/2589
|
