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Table 1 Summary of the descriptive characteristics of included studies

From: Acceptability of mobile-phone reminders for routine childhood vaccination appointments in Nigeria – a systematic review and meta-analysis

Author, Study design Study location (Region, State, and Setting) Study population Sample size (N) Mean Age (SD) (yrs) Mobile-phone ownership, n (%) Willingness to receive MPR, n (%) Study Quality
Ajayi et al., 2015 [44] Cross-sectional Region: SW
State: Lagos
Setting: Urban
Mothers at home in Mushin LGA, Lagos 400 28.1 (9.50) 374 (93.5%) 306 (76.5%) High
Akinrinde et al., 2018 [45] Cross-sectional Region: SW
State: Ondo
Setting: Mixed (Rural, peri-urban, and urban)
Mothers of infants attending routine immunization clinics in 24 randomly selected PHC centers 615 28.5 (6.01) 529 (86.0%) 613 (99.7%) High
Balogun et al., 2012 [52] Cross-sectional Region: SW
State: Lagos
Setting: Urban
Mothers attending the Lagos University Teaching Hospital (LUTH)‘s child welfare clinic, Lagos 399 31.1 (4.70) 391 (98.0%) 308 (77.2%) High
Bello et al., 2020 [53] Cross-sectional Region: NC
State: Nasarawa
Setting: Urban
Mothers of children in the Medical Ward of Dalhatu Araf Specialist Hospital (DASH), Lafia 135 27.5 (5.82) 124 (91.9%) 111 (82.2%) Low
Brown & Oluwatosin, 2017 [54] Interventional Region: SW
State: Oyo
Setting: Urban
Mothers of infants
attending routine immunization clinics in four randomly selected
communities’ PHC centers in Ibadan
595 27.5 (5.82) 590 (99.2%) 584 (98.2%) High
Brown et al., 2015 [55] Cross-sectional Region: SW
State: Oyo
Setting: Urban
Mothers of infants
attending routine immunization clinics in four randomly selected
communities’ PHC centers in Ibadan
614 29.0 (4.90) 607 (98.8%) 584 (95.1%) High
Dipeolu 2017 [56] Cross-sectional Region: SW
State: Oyo
Setting: Rural
Mothers of Infants attending Routine immunization clinics in two randomly selected rural LGAs 366 26.1 (5.55) 366 (100.0%) 340 (92.9%) High
Eze & Adeleye, 2015 [57] Interventional Region: SS
State: Edo
Setting: Urban
Caregivers of infants attending routine immunization from
eight randomly health facilities in Egor LGA in Edo State
905 30.5 (5.43) 896 (99.0%) 843 (93.1%) High
Eze et al., 2018 [58] Interventional Region: SE
State: Ebonyi
Setting: Urban
Caregivers of infants accessing immunization services in rural health facilities in Abakaliki. 290 27.0 (5.21) 290 (100.0%) 285 (98.3%) Moderate
Ibraheem & Akintola, 2017 [59] Cross-sectional Region: NC
State: Kwara
Setting: Urban
Mothers/caregivers bringing their newborns for their first set of vaccines at two public hospitals in Ilorin West LGA 526 28.5 (4.80) 488 (92.8%) 363 (69.0%) High
Ibraheem et al., 2018 [46] Cross-sectional Region: NC
State: Kwara
Setting: Urban
Caregivers bringing their newborns for their first set of vaccines at two public hospitals in Ilorin West LGA 536 28.5 (4.80) 526 (98.1%) 363 (67.7%) High
Odinaka et al., 2018 [47] Cross-sectional Region: SE
State: Imo
Setting: Urban
Mothers of infants attending the immunization clinic of Federal Medical Centre Owerri, Imo State 253 30.4 (7.10) 244 (96.4%) 156 (61.7%) Moderate
Oladepo et al., 2019 [48] Cross-sectional Region: All six regions
States: Abia, Bauchi, Benue, Bayelsa, Katsina, Ondo, and FCT
Setting: Rural
Mothers of infants attending immunization clinics in seven randomly selected states 3500 26.7 (5.50) 3440 (98.3%) 3113 (88.9%) High
Onoja-Alexander et al., 2018 [49] Cross-sectional Region: NW
State: Kaduna
Setting: Urban
Randomly selected caregivers attending routine childhood immunization clinic in ABUTH Shika, Zaria 300 28.7 (4.22) 235 (78.3%) 251 (83.7%) High
Sadoh & Okungbowa, 2014 [50] Cross-sectional Region: SS
State: Edo
Setting: Urban
A conveniently selected sample of mothers of infants attending immunization clinic at the Institute of Child Health, University of Benin, Benin City. 203 30.5 (5.07) 188 (92.6%) 127 (62.6%) Low
Tagbo et al., 2020 [51] Cross-sectional Region: SE
State: Enugu
Setting: Urban
Caregivers bringing their infants for immunization in five randomly selected health facilities in Enugu metropolis 286 29.6 (6.97) 278 (97.2%) 255 (89.2%) Moderate
  1. ABBREVIATIONS: MPR Mobile-phone reminders, SD Standard deviation, NC North-Central, NE North-East, NW North-West, SE South-East, SS South-South, SW South-West, FCT Federal Capital Territory, Abuja. ABUTH Ahmadu Bello University Teaching Hospital