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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)

531 questions in 102 reviews · Gynaecology and Fertility

current versions
No studies 531 · 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
Oral progestogen (dienogest, desogestrel) vs goserelin acetate
Fibroid size · women with uterine fibroids
Progestogens or progestogen‐releasing intrauterine systems for uterine fibroids (other than preoperative… (2020) · Cochrane
no estimate extractedNRNo studies
Levonorgestrel‐releasing intrauterine device vs low dose combined oral contraceptive
Adverse events · women with uterine fibroids
Progestogens or progestogen‐releasing intrauterine systems for uterine fibroids (other than preoperative… (2020) · Cochrane
no estimate extractedNRNo studies
Levonorgestrel‐releasing intrauterine device vs oral progestogen (norethisterone acetate)
Fibroid size · women with uterine fibroids
Progestogens or progestogen‐releasing intrauterine systems for uterine fibroids (other than preoperative… (2020) · Cochrane
no estimate extractedNRNo studies
Intervention NR
Congenital abnormalities per live birth · couples undergoing assisted reproduction treatment
Regular (ICSI) versus ultra‐high magnification (IMSI) sperm selection for assisted reproduction (2020) · Cochrane
no estimate extractedNRNo studies
Laparoscopic treatment vs diagnostic laparoscopy
Live birth · women with endometriosis
Laparoscopic surgery for endometriosis (2020) · Cochrane
no estimate extractedNRNo studies
UAE/UACE vs systemic MTX
Time to normalize β‐hCG · women with CSP
Interventions for non‐tubal ectopic pregnancy (2020) · Cochrane
no estimate extractedNRNo studies
Suction curettage under hysteroscopy vs under ultrasonography
Blood loss · women with CSP
Interventions for non‐tubal ectopic pregnancy (2020) · Cochrane
no estimate extractedNRNo studies
LNG vs no treatment
Adverse effects associated with hormones · women with endometrial hyperplasia
Levonorgestrel‐releasing intrauterine system for endometrial hyperplasia (2020) · Cochrane
no estimate extractedNRNo studies
LNG vs no treatment
Withdrawal secondary to adverse effects · women with endometrial hyperplasia
Levonorgestrel‐releasing intrauterine system for endometrial hyperplasia (2020) · Cochrane
no estimate extractedNRNo studies
LNG vs no treatment
Satisfaction · women with endometrial hyperplasia
Levonorgestrel‐releasing intrauterine system for endometrial hyperplasia (2020) · Cochrane
no estimate extractedNRNo studies
LNG vs no treatment
Cost of treatment · women with endometrial hyperplasia
Levonorgestrel‐releasing intrauterine system for endometrial hyperplasia (2020) · Cochrane
no estimate extractedNRNo studies
LNG vs no treatment
Adverse effects associated with LNG‐IUS · women with endometrial hyperplasia
Levonorgestrel‐releasing intrauterine system for endometrial hyperplasia (2020) · Cochrane
no estimate extractedNRNo studies
LNG vs no treatment
Hysterectomy · women with endometrial hyperplasia
Levonorgestrel‐releasing intrauterine system for endometrial hyperplasia (2020) · Cochrane
no estimate extractedNRNo studies
Embryo culture supernatant vs culture medium injection
Ectopic pregnancy · Subfertile women undergoing assisted reproduction
Endometrial injection of embryo culture supernatant for subfertile women in assisted reproduction (2020) · Cochrane
no estimate extractedNRNo studies
Embryo culture supernatant vs culture medium injection
Multiple pregnancy · Subfertile women undergoing assisted reproduction
Endometrial injection of embryo culture supernatant for subfertile women in assisted reproduction (2020) · Cochrane
no estimate extractedNRNo studies
Embryo culture supernatant vs culture medium injection
Preterm delivery · Subfertile women undergoing assisted reproduction
Endometrial injection of embryo culture supernatant for subfertile women in assisted reproduction (2020) · Cochrane
no estimate extractedNRNo studies
Embryo culture supernatant vs culture medium injection
Foetal abnormalities · Subfertile women undergoing assisted reproduction
Endometrial injection of embryo culture supernatant for subfertile women in assisted reproduction (2020) · Cochrane
no estimate extractedNRNo studies
Embryo culture supernatant vs culture medium injection
Live birth/ongoing pregnancy · Subfertile women undergoing assisted reproduction
Endometrial injection of embryo culture supernatant for subfertile women in assisted reproduction (2020) · Cochrane
no estimate extractedNRNo studies
Embryo culture supernatant vs culture medium injection
Miscarriage · Subfertile women undergoing assisted reproduction
Endometrial injection of embryo culture supernatant for subfertile women in assisted reproduction (2020) · Cochrane
no estimate extractedNRNo studies
G‐CSF vs no treatment or placebo
Multiple pregnancy rate · subfertile women undergoing assisted reproduction
Granulocyte‐colony stimulating factor administration for subfertile women undergoing assisted reproduction (2020) · Cochrane
no estimate extractedNRNo studies
Combined oral contraceptive pill vs levonorgestrel‐releasing intrauterine system
Other primary menstrual bleeding outcomes: semi‐objectively assessed menstrual blood loss, subjectively assessed menstrual blood loss · heavy menstrual bleeding
Combined hormonal contraceptives for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
Combined oral contraceptive pill vs contraceptive vaginal ring
Other primary menstrual bleeding outcomes: objectively assessed menstrual blood loss, subjectively assessed menstrual blood loss · heavy menstrual bleeding
Combined hormonal contraceptives for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
Contraceptive vaginal ring vs progestogens
Other primary menstrual bleeding outcomes: objectively assessed menstrual blood loss, subjectively assessed menstrual blood loss · heavy menstrual bleeding
Combined hormonal contraceptives for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
Contraceptive vaginal ring vs progestogens
Adverse events · heavy menstrual bleeding
Combined hormonal contraceptives for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
Combined oral contraceptive pill vs placebo
Other primary menstrual bleeding and satisfaction outcomes: semi‐objectively assessed menstrual blood loss, participant satisfaction with treatment · heavy menstrual bleeding
Combined hormonal contraceptives for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
Combined oral contraceptive pill vs non‐steroidal anti‐inflammatory drugs
Other primary menstrual bleeding and satisfaction outcomes: semi‐objectively assessed menstrual blood loss, subjectively assessed menstrual blood loss, participant satisfaction with treatment · heavy menstrual bleeding
Combined hormonal contraceptives for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
Combined oral contraceptive pill vs non‐steroidal anti‐inflammatory drugs
Adverse events · heavy menstrual bleeding
Combined hormonal contraceptives for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
NSAIDs vs ethamsylate (control)
Quality of life · women with heavy menstrual bleeding
Non‐steroidal anti‐inflammatory drugs for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
NSAIDs vs danazol (control)
Quality of life · women with heavy menstrual bleeding
Non‐steroidal anti‐inflammatory drugs for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
NSAIDs vs oral progestogens (control)
Quality of life · women with heavy menstrual bleeding
Non‐steroidal anti‐inflammatory drugs for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
NSAIDs vs progesterone‐releasing intrauterine system (control)
Quality of life · women with heavy menstrual bleeding
Non‐steroidal anti‐inflammatory drugs for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
NSAIDs vs oral contraceptive pill (control)
Quality of life · women with heavy menstrual bleeding
Non‐steroidal anti‐inflammatory drugs for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
NSAIDs vs oral contraceptive pill (control)
Days of bleeding · women with heavy menstrual bleeding
Non‐steroidal anti‐inflammatory drugs for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
Mefenamic acid vs naproxen
Quality of life · women with heavy menstrual bleeding
Non‐steroidal anti‐inflammatory drugs for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
NSAIDs vs placebo (control)
Quality of life · women with heavy menstrual bleeding
Non‐steroidal anti‐inflammatory drugs for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
NSAIDs vs placebo (control)
Number of days' bleeding · women with heavy menstrual bleeding
Non‐steroidal anti‐inflammatory drugs for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
NSAIDs vs tranexamic acid (control)
Quality of life · women with heavy menstrual bleeding
Non‐steroidal anti‐inflammatory drugs for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
Progestogen therapy long cycle (3 to 4 weeks) vs other medical therapy
Quality of life · women with heavy menstrual bleeding
Cyclical progestogens for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
Progestogen therapy long cycle (3 to 4 weeks) vs other medical therapy
Days of bleeding · women with heavy menstrual bleeding
Cyclical progestogens for heavy menstrual bleeding (2019) · Cochrane
no estimate extractedNRNo studies
Exercise vs non‐steroidal anti‐inflammatory drugs (NSAIDs)
Overall menstrual symptoms ‐ not reported · young women with suspected primary dysmenorrhoea
Exercise for dysmenorrhoea (2019) · Cochrane
no estimate extractedNRNo studies
Exercise vs non‐steroidal anti‐inflammatory drugs (NSAIDs)
Restriction of daily life activities ‐ not reported · young women with suspected primary dysmenorrhoea
Exercise for dysmenorrhoea (2019) · Cochrane
no estimate extractedNRNo studies
Exercise vs non‐steroidal anti‐inflammatory drugs (NSAIDs)
Quality of life ‐ not reported · young women with suspected primary dysmenorrhoea
Exercise for dysmenorrhoea (2019) · Cochrane
no estimate extractedNRNo studies
Exercise vs no treatment
Use of rescue analgesic medication ‐ not reported · young women with suspected primary dysmenorrhoea
Exercise for dysmenorrhoea (2019) · Cochrane
no estimate extractedNRNo studies
Exercise vs no treatment
Restriction of daily life activities ‐ not reported · young women with suspected primary dysmenorrhoea
Exercise for dysmenorrhoea (2019) · Cochrane
no estimate extractedNRNo studies
Exercise vs no treatment
Absence from work or school ‐ not reported · young women with suspected primary dysmenorrhoea
Exercise for dysmenorrhoea (2019) · Cochrane
no estimate extractedNRNo studies
Exercise vs non‐steroidal anti‐inflammatory drugs (NSAIDs)
Adverse events ‐ not reported · young women with suspected primary dysmenorrhoea
Exercise for dysmenorrhoea (2019) · Cochrane
no estimate extractedNRNo studies
Swim‐up technique vs gradient technique
Live birth rate per couple · patients undergoing intrauterine insemination (fresh semen)
Semen preparation techniques for intrauterine insemination (2019) · Cochrane
no estimate extractedNRNo studies
Gradient technique vs wash and centrifugation
Live birth rate per couple · patients with undergoing intrauterine insemination (fresh semen)
Semen preparation techniques for intrauterine insemination (2019) · Cochrane
no estimate extractedNRNo studies
Gradient technique vs wash and centrifugation
Ongoing pregnancy rate per couple · patients with undergoing intrauterine insemination (fresh semen)
Semen preparation techniques for intrauterine insemination (2019) · Cochrane
no estimate extractedNRNo studies
Swim‐up technique vs wash and centrifugation
Live birth rate per couple · patients undergoing intrauterine insemination (fresh semen)
Semen preparation techniques for intrauterine insemination (2019) · Cochrane
no estimate extractedNRNo studies