Effect of mobile phone text message and call reminders in the completeness of pentavalent vaccines in Kano state, Nigeria

Parental Reminder Strategies and the Cost Implication for Improved Immunisation Outcomes: A Systematic Review and Meta-Analysis

“…A total of 54,224 parents were recruited as participants in all the studies and numbers ranged from 42 in the study of Niederhauser et al [ 26 ] to 13,000 in the study of Busso et al [ 27 ]. In almost all the studies, participants were reportedly mothers or caregivers of the children [ 7 , 9 , 12 , 13 , 15 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 43 , 44 ]. Two studies reportedly mentioned males as participants, Hofstetter et al [ 39 ] reported a nearly even distribution of participants, male (1051) and females (1003) and Niederhauser et al [ 26 ] reported only one male participant in their study.…”

“…Regarding the categorisation of the countries of the included studies, the World Bank income classification reveals that 5 studies [ 26 , 28 , 33 , 35 , 42 ] were conducted in high-income countries, while the remaining 19 were conducted in low- or middle-income countries. Additionally, based on the study’s inclusion criteria, 4 studies [ 13 , 15 , 43 , 44 ] were quasi-experimental, while the remaining 20 were randomized control trials. Of the 20 RCTs, 3 [ 30 , 31 , 41 ] were cluster randomized trials.…”

“…Quasi-experimental studies were all found to be of acceptable quality. The total score ranges from 73% [ 15 ] to 78% [ 43 ]. Refer to Table 2 and Table 3 for a detailed assessment of the risk of bias.…”

“…Twenty-four studies were included in the review to evaluated parental reminder or recall strategies for improved immunisation. Out of the 24 studies, 19 [ 9 , 13 , 15 , 26 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ] provided sufficient information and were therefore included for meta-analysis. The 19 studies assess five different parental reminder/recall strategies on two major immunisation outcomes: coverage and timeliness of immunisation among children.…”

“…There are a few systematic reviews conducted in this regard; some were based on the effect of parental reminders in developing countries [ 14 , 15 ], others were conducted a long time ago, and new evidence has emerged [ 16 ] or narrowed to a specific intervention [ 15 , 17 , 18 ]. Others targeted adolescent or adult populations, not children under five [ 3 , 7 ].…”