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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)

3,601 questions in 252 reviews · Pregnancy and Childbirth

current versions
No studies 726 · 20.2%Ungraded 421 · 11.7%Very low 828 · 23%Low 993 · 27.6%Moderate 486 · 13.5%High 147 · 4.1%

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
Comparison between rooming‐in vs separate care
Duration of any breastfeeding · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Comparison between rooming‐in vs separate care
Proportion of women exclusive breastfeeding at 6 months · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Comparison between rooming‐in vs separate care
Proportion of women with any breastfeeding at 6 months (nearly exclusive breastfeeding) · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
RR 0.84 [0.51, 1.39]1 study · 137 participantsLow
Comparison between rooming‐in vs separate care
Frequency of breastfeeding per day · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
no estimate extracted4 participantsHigh
Comparison between rooming‐in vs separate care
Exclusive breastfeeding at day 4 postpartum · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
RR 1.92 [1.34, 2.76]1 study · 153 participantsLow
Comparison between rooming‐in vs separate care
Maternal level of confidence in breastfeeding · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Comparison between rooming‐in vs separate care
Neonatal infection · 176 healthy mother‐infant dyads after normal spontaneous vaginal delivery (rooming‐in: 132, separate care: 44)
Rooming‐in for new mother and infant versus separate care for increasing the duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Nitric oxide donors vs placebo
Vaginal delivery not achieved in 24 hours · pregnant women undergoing cervical ripening and induction of labour
Nitric oxide donors for cervical ripening and induction of labour (2016) · Cochrane
RR 0.97 [0.83, 1.15]1 study · 238 participantsLow
Nitric oxide donors vs placebo
Uterine hyperstimulation with FHR changes · pregnant women undergoing cervical ripening and induction of labour
Nitric oxide donors for cervical ripening and induction of labour (2016) · Cochrane
RR 0.09 [0.01, 1.62]2 studies · 300 participantsLow
Nitric oxide donors vs placebo
Caesarean section · pregnant women undergoing cervical ripening and induction of labour
Nitric oxide donors for cervical ripening and induction of labour (2016) · Cochrane
RR 0.99 [0.88, 1.11]9 studies · 2624 participantsModerate
Nitric oxide donors vs placebo
Serious neonatal morbidity/perinatal death · pregnant women undergoing cervical ripening and induction of labour
Nitric oxide donors for cervical ripening and induction of labour (2016) · Cochrane
RR 1.61 [0.08, 33.26]2 studies · 1712 participantsLow
Nitric oxide donors vs placebo
Serious maternal morbidity or death · pregnant women undergoing cervical ripening and induction of labour
Nitric oxide donors for cervical ripening and induction of labour (2016) · Cochrane
no estimate extracted1 study · 1362 participantsUngraded
Restriction of pacifier use vs no restriction
Proportion of infants exclusively breastfed at 4‐6 months · healthy full‐term newborns whose mothers have initiated breastfeeding and intend to exclusively breastfeed
Effect of restricted pacifier use in breastfeeding term infants for increasing duration of breastfeeding (2016) · Cochrane
RR 1.01 [0.94, 1.09]1 study · 970 participantsModerate
Restriction of pacifier use vs no restriction
Duration of full or exclusive breastfeeding · healthy full‐term newborns whose mothers have initiated breastfeeding and intend to exclusively breastfeed
Effect of restricted pacifier use in breastfeeding term infants for increasing duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Restriction of pacifier use vs no restriction
Breastfeeding difficulties · healthy full‐term newborns whose mothers have initiated breastfeeding and intend to exclusively breastfeed
Effect of restricted pacifier use in breastfeeding term infants for increasing duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Restriction of pacifier use vs no restriction
Maternal satisfaction and level of confidence in parenting · healthy full‐term newborns whose mothers have initiated breastfeeding and intend to exclusively breastfeed
Effect of restricted pacifier use in breastfeeding term infants for increasing duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Restriction of pacifier use vs no restriction
Infant otitis media · healthy full‐term newborns whose mothers have initiated breastfeeding and intend to exclusively breastfeed
Effect of restricted pacifier use in breastfeeding term infants for increasing duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Restriction of pacifier use vs no restriction
Infant dental malocclusion · healthy full‐term newborns whose mothers have initiated breastfeeding and intend to exclusively breastfeed
Effect of restricted pacifier use in breastfeeding term infants for increasing duration of breastfeeding (2016) · Cochrane
no estimate extractedNRNo studies
Very tight vs tight‐moderate glycaemic control (maternal outcomes)
Pre‐eclampsia · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Very tight vs tight‐moderate glycaemic control (infant outcomes)
Serious perinatal morbidity · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extracted1 study · 22 participantsLow
Very tight vs tight‐moderate glycaemic control (infant outcomes)
Neonatal hypoglycaemia · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Very tight vs tight‐moderate glycaemic control (infant outcomes)
Childhood/adulthood adiposity · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Very tight vs tight‐moderate glycaemic control (infant outcomes)
Childhood/adulthood diabetes · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Very tight vs tight‐moderate glycaemic control (infant outcomes)
Childhood/adulthood neurosensory disability · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight vs moderate glycaemic control (maternal outcomes)
Pre‐eclampsia · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
RR 5.29 [0.23, 122.91]1 study · 45 participantsVery low
Tight vs moderate glycaemic control (maternal outcomes)
Caesarean section · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
RR 1.21 [0.22, 6.5]1 study · 45 participantsVery low
Tight vs moderate glycaemic control (maternal outcomes)
Perineal trauma · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight vs moderate glycaemic control (maternal outcomes)
Gestational weight gain · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight vs moderate glycaemic control (maternal outcomes)
Postnatal depression · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Very tight vs tight‐moderate glycaemic control (maternal outcomes)
Caesarean section · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
RR 0.92 [0.49, 1.73]1 study · 22 participantsVery low
Tight vs moderate glycaemic control (maternal outcomes)
Induction of labour · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight vs moderate glycaemic control (maternal outcomes)
Later development of cardiovascular disease · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight vs moderate glycaemic control (infant outcomes)
Large‐for‐gestational age (birthweight > 90th centile) · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extracted1 study · 45 participantsVery low
Tight vs moderate glycaemic control (infant outcomes)
Perinatal mortality · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extracted1 study · 45 participantsVery low
Tight vs moderate glycaemic control (infant outcomes)
Serious perinatal morbidity · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight vs moderate glycaemic control (infant outcomes)
Neonatal hypoglycaemia · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight vs moderate glycaemic control (infant outcomes)
Childhood/adulthood adiposity · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight vs moderate glycaemic control (infant outcomes)
Childhood/adulthood diabetes · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight vs moderate glycaemic control (infant outcomes)
Childhood/adulthood neurosensory disability · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight‐moderate vs loose glycaemic control (maternal outcomes)
Pre‐eclampsia · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
RR 0.11 [0.01, 0.99]1 study · 60 participantsLow
Very tight vs tight‐moderate glycaemic control (maternal outcomes)
Perineal trauma · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight‐moderate vs loose glycaemic control (maternal outcomes)
Caesarean section · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
RR 0.28 [0.1, 0.78]1 study · 60 participantsLow
Tight‐moderate vs loose glycaemic control (maternal outcomes)
Perineal trauma · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight‐moderate vs loose glycaemic control (maternal outcomes)
Gestational weight gain · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight‐moderate vs loose glycaemic control (maternal outcomes)
Postnatal depression · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight‐moderate vs loose glycaemic control (maternal outcomes)
Induction of labour · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight‐moderate vs loose glycaemic control (maternal outcomes)
Later development of cardiovascular disease · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies
Tight‐moderate vs loose glycaemic control (infant outcomes)
Large‐for‐gestational age (birthweight > 90th centile) · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
RR 0.01 [0, 0.2]1 study · 60 participantsLow
Tight‐moderate vs loose glycaemic control (infant outcomes)
Perinatal mortality · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
RR 0.07 [0, 1.37]1 study · 60 participantsVery low
Tight‐moderate vs loose glycaemic control (infant outcomes)
Serious perinatal morbidity · pregnant women with pre‐existing type 1 diabetes
Different intensities of glycaemic control for pregnant women with pre‐existing diabetes (2016) · Cochrane
no estimate extractedNRNo studies