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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)

726 questions in 98 reviews · Pregnancy and Childbirth

current versions
No studies 726 · 100%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 0 · 0%High 0 · 0%

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
Physical breastfeeding support interventions (electric or manual breast pump) vs usual care (no pump)
Exclusive breastfeeding at 6 months · women with a pre‐pregnancy BMI > 29 kg/m², who were intending to breastfeed, had no history of breast surgery, who…
Interventions for supporting the initiation and continuation of breastfeeding among women who are overweight… (2019) · Cochrane
no estimate extractedNRNo studies
Physical breastfeeding support interventions (electric or manual breast pump) vs usual care (no pump)
Any breastfeeding at 6 months · women with a pre‐pregnancy BMI > 29 kg/m², who were intending to breastfeed, had no history of breast surgery, who…
Interventions for supporting the initiation and continuation of breastfeeding among women who are overweight… (2019) · Cochrane
no estimate extractedNRNo studies
Fetal biometry vs maternal glycaemic values
Maternal Hypoglycaemia ‐ not reported · women with gestational diabetes mellitus and their babies
Fetal biometry for guiding the medical management of women with gestational diabetes mellitus for improving… (2019) · Cochrane
no estimate extractedNRNo studies
Fetal biometry vs maternal glycaemic values
Development of T2DM in mother ‐ not reported · women with gestational diabetes mellitus and their babies
Fetal biometry for guiding the medical management of women with gestational diabetes mellitus for improving… (2019) · Cochrane
no estimate extractedNRNo studies
Immersion in water vs no immersion during second stage of labour
Use of analgesia (regional) · women in labour
Immersion in water during labour and birth (2018) · Cochrane
no estimate extractedNRNo studies
Immersion in water vs no immersion during second stage of labour
Perineal trauma (third‐ or fourth‐degree tears) · women in labour
Immersion in water during labour and birth (2018) · Cochrane
no estimate extractedNRNo studies
Immersion in water vs no immersion during second stage of labour
Estimated blood loss (mL) · women in labour
Immersion in water during labour and birth (2018) · Cochrane
no estimate extractedNRNo studies
Immersion in water vs no immersion during first stage of labour
Perinatal death · women in labour
Immersion in water during labour and birth (2018) · Cochrane
no estimate extractedNRNo studies
Any antihypertensive drug vs no antihypertensive drugs/placebo
Maternal · women with mild to moderate hypertension during pregnancy
Antihypertensive drug therapy for mild to moderate hypertension during pregnancy (2018) · Cochrane
no estimate extractedNRNo studies
Any antihypertensive drug vs no antihypertensive drugs/placebo
Fetal/neonatal/infant · women with mild to moderate hypertension during pregnancy
Antihypertensive drug therapy for mild to moderate hypertension during pregnancy (2018) · Cochrane
no estimate extractedNRNo studies
Any antihypertensive drug vs no antihypertensive drugs/placebo
Fetal/neonatal/infant · women with mild to moderate hypertension during pregnancy
Antihypertensive drug therapy for mild to moderate hypertension during pregnancy (2018) · Cochrane
no estimate extractedNRNo studies
Any antihypertensive drug vs no antihypertensive drugs/placebo
Maternal · women with mild to moderate hypertension during pregnancy
Antihypertensive drug therapy for mild to moderate hypertension during pregnancy (2018) · Cochrane
no estimate extractedNRNo studies
Interventionist care vs expectant (delayed delivery) care
Stroke (brain damage) · women with severe pre‐eclampsia between 24 and 34 weeks' gestation
Interventionist versus expectant care for severe pre‐eclampsia between 24 and 34 weeks' gestation (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Diabetes · children of women randomised to omega‐3 or no omega‐3 during pregnancy
Omega‐3 fatty acid addition during pregnancy (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Costs · pregnant women and their infants
Omega‐3 fatty acid addition during pregnancy (2018) · Cochrane
no estimate extractedNRNo studies
Oral ergot alkaloids vs no uterotonic agents
Maternal haemoglobin concentration at 24 to 48 hours postpartum (g/dL) · women in the third stage of labour
Prophylactic use of ergot alkaloids in the third stage of labour (2018) · Cochrane
no estimate extractedNRNo studies
Oral ergot alkaloids vs no uterotonic agents
Elevation of blood pressure · women in the third stage of labour
Prophylactic use of ergot alkaloids in the third stage of labour (2018) · Cochrane
no estimate extractedNRNo studies
Oral ergot alkaloids vs no uterotonic agents
Pain after birth requiring analgesia (not prespecified) · women in the third stage of labour
Prophylactic use of ergot alkaloids in the third stage of labour (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Maternal satisfaction with analgesia, maternal pain score or pain measured in labour, additional analgesia, epidural
Parenteral opioids for maternal pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Opioids versus TENS
Parenteral opioids for maternal pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Upright position vs recumbent position
Maternal outcomes · women in the second stage of labour with epidural anaesthesia
Maternal position in the second stage of labour for women with epidural anaesthesia (2018) · Cochrane
no estimate extractedNRNo studies
Upright position vs recumbent position
Infant outcomes · women in the second stage of labour with epidural anaesthesia
Maternal position in the second stage of labour for women with epidural anaesthesia (2018) · Cochrane
no estimate extractedNRNo studies
Warm pack vs usual care
Sense of control in labour — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Warm pack vs usual care
Satisfaction with childbirth experience — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Warm pack vs usual care
Assisted vaginal birth — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Warm pack vs usual care
Caesarean section — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Warm pack vs usual care
Use of pharmacological pain relief — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Thermal manual methods vs usual care
Sense of control in labour — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Thermal manual methods vs usual care
Satisfaction with childbirth experience — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Thermal manual methods vs usual care
Caesarean section — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Thermal manual methods vs usual care
Use of pharmacological pain relief — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Massage vs music
Sense of control in labour — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Massage vs music
Satisfaction with childbirth experience — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Massage vs music
Assisted vaginal birth — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Massage vs music
Caesarean section — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Massage vs music
Length of labour — not reported · women in labour
Massage, reflexology and other manual methods for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Yoga vs control
Sense of control in labour · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Yoga vs control
Breastfeeding · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Yoga vs control
Assisted vaginal birth · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Yoga vs control
Caesarean section · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Music vs control
Satisfaction with pain relief · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Music vs control
Sense of control in labour · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Music vs control
Satisfaction with childbirth experience · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Music vs control
Breastfeeding · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Relaxation vs usual care
Sense of control in labour · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Relaxation vs usual care
Breastfeeding · women in labour
Relaxation techniques for pain management in labour (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for selective ß2‐adrenergic agonist vs no tocolytic agent, whilst awaiting emergency delivery
Perinatal death or severe morbidity · women with fetal distress for whom the decision had been made to delivery by emergency caesarean section
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for IV fenoterol bromhydrate vs emergency delivery
Perinatal death or severe morbidity · women with a non‐reassuring fetal heart trace during labour but without uterine tachysystole
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for IV fenoterol bromhydrate vs emergency delivery
Fetal or neonatal mortality · women with a non‐reassuring fetal heart trace during labour but without uterine tachysystole
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies
Summary of findings for IV fenoterol bromhydrate vs emergency delivery
Abnormal FHR tracing · women with a non‐reassuring fetal heart trace during labour but without uterine tachysystole
Acute tocolysis for uterine tachysystole or suspected fetal distress (2018) · Cochrane
no estimate extractedNRNo studies