Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,024 questions · 3,338 findings · 330 reviews

No studies found 735 · 22%GRADE not reported 282 · 8.4%Very low 962 · 28.8%Low 870 · 26.1%Moderate 384 · 11.5%High 105 · 3.1%

Active stimulation + other intervention vs other intervention alone

Participant‐reported pain relief of 50% or greater · adults with chronic pain

It is very uncertain whether active stimulation + other intervention changes pain intensity. Proportion with ≥ 50% pain relief. compared with other intervention alone (very low certainty).

1 finding from 1 review

Active stimulation + other intervention vs other intervention alone

Adverse event: lead failure/ displacement · adults with chronic pain

The review found no eligible studies for this question.

3 findings from 1 review

Active stimulation + other intervention vs other intervention alone

Adverse events: need for reoperation/ reimplantation · adults with chronic pain

The review found no eligible studies for this question.

2 findings from 1 review

Active stimulation + other intervention vs other intervention alone

Pain intensity (number of people with ≥ 50% improvement) · adults with chronic pain

Active stimulation + other intervention may leads to higher pain intensity. Proportion with ≥50% pain relief. compared with other intervention alone (low certainty).

2 findings from 1 review

Provider‐ or system‐based interventions vs no intervention or another intervention

Reminder to physician about all participants compared to reminder about half of participants · people aged 60 years and older living in the community

Provider‐ or system‐based interventions leads to higher reminder to physician about all participants compared to reminder… compared with no intervention or another intervention (high certainty).

1 finding from 1 review

Provider‐ or system‐based interventions vs no intervention or another intervention

Reminder (to hospital staff to vaccinate patient) compared to reminder letter to GP on day of discharge · people aged 60 years and older living in the community

Provider‐ or system‐based interventions showed no clear difference in reminder (to hospital staff to vaccinate patient) compared to… compared with no intervention or another intervention (high certainty).

1 finding from 1 review

Provider‐ or system‐based interventions vs no intervention or another intervention

Posters in clinic displaying influenza vaccination rates to encourage doctors to compete plus postcards to participants compared to posters alone · people aged 60 years and older living in the community

Provider‐ or system‐based interventions showed no clear difference in posters in clinic displaying influenza vaccination rates to… compared with no intervention or another intervention (high certainty).

1 finding from 1 review

Provider‐ or system‐based interventions vs no intervention or another intervention

Educational reminders, academic detailing, and peer comparisons to physicians compared to mailed educational materials · people aged 60 years and older living in the community

Provider‐ or system‐based interventions showed no clear difference in educational reminders, academic detailing, and peer comparisons to… compared with no intervention or another intervention (moderate certainty).

1 finding from 1 review

Provider‐ or system‐based interventions vs no intervention or another intervention

Chart review and feedback to physician plus benchmarking to vaccination rates achieved by top 10% of physicians compared to chart review and feedback · people aged 60 years and older living in the community

Provider‐ or system‐based interventions probably leads to higher chart review and feedback to physician plus benchmarking to… compared with no intervention or another intervention (moderate certainty).

1 finding from 1 review

Provider‐ or system‐based interventions vs no intervention or another intervention

Educational outreach plus feedback to practice teams versus written feedback to practice teams · people aged 60 years and older living in the community

Provider‐ or system‐based interventions leads to lower educational outreach plus feedback to practice teams versus written… compared with no intervention or another intervention (high certainty).

1 finding from 1 review

Provider‐ or system‐based interventions vs no intervention or another intervention

Payment to physicians versus no payment · people aged 60 years and older living in the community

Provider‐ or system‐based interventions leads to higher payment to physicians versus no payment compared with no intervention or another intervention (high certainty).

1 finding from 1 review