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Search review questions

Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

1,852 questions in 128 reviews · Effective Practice and Organisation of Care

current versions
No studies 557 · 30.1%Ungraded 53 · 2.9%Very low 446 · 24.1%Low 476 · 25.7%Moderate 255 · 13.8%High 65 · 3.5%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Home‐based record combined with other interventions vs routine care
Adverse events · children aged 1 year
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Digital register vs routine care
Proportion of children who received DTP3 or Penta 3 by 1 year of age · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 0.98 [0.89, 1.09]2 studies · 328 participantsModerate
Digital register vs routine care
Proportion of children who received all recommended vaccines by 2 years of age · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.03 [0.88, 1.2]1 study · 205 participantsLow
Digital register vs routine care
Proportion of children who received the vaccine under study (BCG) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 0.98 [0.92, 1.04]1 study · 205 participantsLow
Digital register vs routine care
Proportion of children who received the vaccine under study (OPV3) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.06 [0.97, 1.17]1 study · 205 participantsLow
Digital register vs routine care
Proportion of children who received the vaccine under study (measles) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.06 [0.97, 1.17]1 study · 205 participantsLow
Digital register vs routine care
Proportion of children who received the vaccine under study (HBV3) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 0.98 [0.89, 1.07]1 study · 205 participantsLow
Digital register vs routine care
Proportion of children under 5 years of age fully immunised with all scheduled vaccines · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Digital register vs routine care
Occurrence of vaccine‐preventable diseases · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Health education vs routine care
Proportion of children who received the vaccine under study (OPV3) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.08 [1.04, 1.11]1 study · 851 participantsLow
Digital register vs routine care
Cost of the intervention · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Digital register vs routine care
Adverse events · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Phone call/SMS with/without combination with monetary incentives vs routine care
Proportion of children who received DTP3 or Penta 3 by 1 year of age (phone call/SMS) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.12 [1, 1.25]6 studies · 3869 participantsLow
Phone call/SMS with/without combination with monetary incentives vs routine care
Proportion of children who received DTP3 or Penta 3 by 1 year of age (SMS + monetary incentive) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.01 [0.98, 1.03]1 study · 766 participantsLow
Phone call/SMS with/without combination with monetary incentives vs routine care
Proportion of children who received all recommended vaccines by 2 years of age (phone call/SMS only) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.06 [0.99, 1.12]5 studies · 10414 participantsLow
Phone call/SMS with/without combination with monetary incentives vs routine care
Proportion of children who received all recommended vaccines by 2 years of age (SMS + monetary incentive) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.09 [1.02, 1.16]1 study · 766 participantsLow
Phone call/SMS with/without combination with monetary incentives vs routine care
Proportion of children who received the vaccine under study ‐ BCG (phone call/SMS only) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 0.98 [0.82, 1.18]1 study · 748 participantsLow
Phone call/SMS with/without combination with monetary incentives vs routine care
Proportion of children who received the vaccine under study ‐ BCG (SMS + monetary incentive) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1 [0.84, 1.2]1 study · 766 participantsLow
Phone call/SMS with/without combination with monetary incentives vs routine care
Proportion of children who received the vaccine under study ‐ OPV3 (phone call/SMS only) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 0.99 [0.94, 1.05]2 studies · 1069 participantsModerate
Phone call/SMS with/without combination with monetary incentives vs routine care
Proportion of children who received the vaccine under study ‐ OPV3 (phone call/SMS + monetary incentive) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.01 [0.99, 1.04]1 study · 766 participantsLow
Health education vs routine care
Proportion of children who received the vaccine under study (HBV3) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.07 [1.03, 1.1]1 study · 851 participantsLow
Phone call/SMS with/without combination with monetary incentives vs routine care
Proportion of children who received the vaccine under study ‐ measles/MMR (phone call/SMS + monetary incentive) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.07 [1.01, 1.14]1 study · 766 participantsLow
Phone call/SMS with/without combination with monetary incentives vs routine care
Occurrence of vaccine‐preventable diseases · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Phone call/SMS with/without combination with monetary incentives vs routine care
Cost of the intervention ‐ reported narratively for 2 studiesk · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Phone call/SMS with/without combination with monetary incentives vs routine care
Adverse events · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Wearable reminders vs routine care
Proportion of children who received DTP3 or Penta 3 by 1 year of age · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.02 [0.97, 1.07]2 studies · 1567 participantsModerate
Wearable reminders vs routine care
Proportion of children who received all recommended vaccines by 2 years of age · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Wearable reminders vs routine care
Proportion of children who received the vaccine under study ‐ BCG · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 0.84 [0.74, 0.94]1 study · 1382 participantsLow
Wearable reminders vs routine care
Proportion of children who received the vaccine under study ‐ measles · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.04 [0.97, 1.12]1 study · 1440 participantsLow
Wearable reminders vs routine care
Proportion of children under 5 years of age fully immunised with all scheduled vaccines · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Wearable reminders vs routine care
Occurrence of vaccine‐preventable diseases · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Health education vs routine care
Proportion of children who received the vaccine under study (measles vaccine) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.25 [1.06, 1.47]4 studies · 3343 participantsLow
Wearable reminders vs routine care
Cost of the intervention ‐ reported narratively for 1 study · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Wearable reminders vs routine care
Adverse events · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Proportion of children who received DTP3 or Penta 3 by 1 year of age · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Proportion of children who received all recommended vaccines by 2 years of age · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 5.65 [3.62, 8.83]1 study · 420 participantsVery low
Training of health providers vs routine care
Proportion of children who received the vaccine under study (BCG) · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Proportion of children under 5 years of age fully immunised with all scheduled vaccines · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Occurrence of vaccine‐preventable diseases · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Cost of the intervention · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Training of health providers vs routine care
Adverse events · children under the age of 5 years
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home visit vs routine care
Proportion of children who received DTP3 or Penta 3 by 1 year of age · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Health education vs routine care
Proportion of children who received other vaccine under study (BCG + DTP3 + OPV) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.02 [0.96, 1.09]1 study · 393 participantsLow
Home visit vs routine care
Proportion of children who received all recommended vaccines by 2 years of age · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.29 [1.15, 1.45]1 study · 419 participantsVery low
Home visit vs routine care
Proportion of children who received the vaccine under study (OPV3) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.22 [1.1, 1.35]1 study · 419 participantsVery low
Home visit vs routine care
Proportion of children who received the vaccine under study (measles) · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
RR 1.26 [1.14, 1.39]1 study · 419 participantsVery low
Home visit vs routine care
Number of children under 5 years of age fully immunised with all scheduled vaccines ‐ not reported · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home visit vs routine care
Occurrence of vaccine‐preventable diseases · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home visit vs routine care
Cost of the intervention · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies
Home visit vs routine care
Adverse events · children under 5 years of age
Interventions for improving coverage of childhood immunisation in low‐ and middle‐income countries (2023) · Cochrane
no estimate extractedNRNo studies