Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,776 questions · 7,311 findings · 959 reviews · Headline outcomes only

No studies found 1,498 · 20.5%GRADE not reported 303 · 4.1%Very low 1,839 · 25.2%Low 1,991 · 27.2%Moderate 1,277 · 17.5%High 403 · 5.5%

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Acupuncture vs usual care

Adverse events Self‐reported · patients with non‐specific chronic low back pain

Acupuncture showed no clear difference in adverse events Self‐reported compared with usual care (low certainty).

1 finding from 1 review

Acupuncture vs sham

Adverse events Self‐reported · patients with non‐specific chronic low back pain

Acupuncture showed no clear difference in adverse events Self‐reported compared with sham intervention (low certainty).

1 finding from 1 review

Additional support vs usual care

Satisfaction with pregnancy care Pregnancy care rated as "very helpful" · women at increased risk of low birthweight babies (maternal outcomes)

Additional support probably leads to higher satisfaction with pregnancy care Pregnancy care rated as "very… compared with usual care during pregnancy (moderate certainty).

1 finding from 1 review

Additional support vs usual care

Death of a baby (stillbirth or neonatal death) report of perinatal death · women at increased risk of low birthweight babies (maternal outcomes)

Additional support showed no clear difference in stillbirth/neonatal death compared with usual care during pregnancy (low certainty).

1 finding from 1 review

Additional support vs usual care

Number of antenatal hospital admissions · women at increased risk of low birthweight babies (maternal outcomes)

Additional support probably leads to lower antenatal hospital admissions Number of admissions per woman compared with usual care during pregnancy (moderate certainty).

2 findings from 1 review

Additional support vs usual care

Postnatal depression · women at increased risk of low birthweight babies (maternal outcomes)

Additional support showed no clear difference in postnatal depression Self‐reported compared with usual care during pregnancy (low certainty).

2 findings from 1 review