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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)

1,590 questions in 129 reviews · Gynaecological, Neuro-oncology and Orphan Cancer

current versions
No studies 281 · 17.7%Ungraded 74 · 4.7%Very low 410 · 25.8%Low 420 · 26.4%Moderate 280 · 17.6%High 125 · 7.9%

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
Two doses of HPV vaccine vs three doses of HPV vaccine
High‐grade cervical intraepithelial neoplasia, adenocarcinoma in situ, and cervical cancer · 9‐ to 15‐year‐old females
Comparison of different human papillomavirus (HPV) vaccine types and dose schedules for prevention of… (2019) · Cochrane
no estimate extractedNRNo studies
Nonavalent HPV vaccine vs quadrivalent HPV vaccine
Mortality at up to 4.5‐year · 9‐ to 26‐year‐old females and males
Comparison of different human papillomavirus (HPV) vaccine types and dose schedules for prevention of… (2019) · Cochrane
OR 1.2 [0.37, 3.94]3 studies · 15248 participantsLow
Two doses of HPV vaccine vs three doses of HPV vaccine
High‐grade cervical, vulval, and vaginal disease · 9‐ to 15‐year‐old females
Comparison of different human papillomavirus (HPV) vaccine types and dose schedules for prevention of… (2019) · Cochrane
no estimate extractedNRNo studies
Two doses of HPV vaccine vs three doses of HPV vaccine
Overall local/injection site adverse events · 9‐ to 15‐year‐old females
Comparison of different human papillomavirus (HPV) vaccine types and dose schedules for prevention of… (2019) · Cochrane
no estimate extractedNRNo studies
Two doses of HPV vaccine vs three doses of HPV vaccine
Overall systemic events and general symptoms · 9‐ to 15‐year‐old females
Comparison of different human papillomavirus (HPV) vaccine types and dose schedules for prevention of… (2019) · Cochrane
no estimate extractedNRNo studies
Two doses of HPV vaccine vs three doses of HPV vaccine
Serious adverse events at up to 5‐year · 9‐ to 15‐year‐old females
Comparison of different human papillomavirus (HPV) vaccine types and dose schedules for prevention of… (2019) · Cochrane
OR 1.03 [0.64, 1.66]4 studies · 2317 participantsVery low
Two doses of HPV vaccine vs three doses of HPV vaccine
Mortality at up to 5‐year · 9‐ to 15‐year‐old females
Comparison of different human papillomavirus (HPV) vaccine types and dose schedules for prevention of… (2019) · Cochrane
OR 0.33 [0.01, 8.19]3 studies · 1797 participantsLow
Two doses of HPV vaccine with longer interval vs two doses of HPV vaccine with shorter interval
Clinical and harms outcomes* · 9‐ to 14‐year‐old females and males
Comparison of different human papillomavirus (HPV) vaccine types and dose schedules for prevention of… (2019) · Cochrane
no estimate extractedNRNo studies
CST vs control
Used open questions · Healthcare professionals working with people who have cancer
Communication skills training for healthcare professionals working with people who have cancer (2018) · Cochrane
no estimate extracted5 studies · 796 participantsVery low
CST vs control
Elicited concerns · Healthcare professionals working with people who have cancer
Communication skills training for healthcare professionals working with people who have cancer (2018) · Cochrane
no estimate extracted3 studies · 221 participantsModerate
CST vs control
Gave appropriate information · Healthcare professionals working with people who have cancer
Communication skills training for healthcare professionals working with people who have cancer (2018) · Cochrane
no estimate extracted4 studies · 489 participantsModerate
CST vs control
Showed empathy · Healthcare professionals working with people who have cancer
Communication skills training for healthcare professionals working with people who have cancer (2018) · Cochrane
no estimate extracted6 studies · 844 participantsModerate
CST vs control
Gave facts only · Healthcare professionals working with people who have cancer
Communication skills training for healthcare professionals working with people who have cancer (2018) · Cochrane
no estimate extracted5 studies · 780 participantsLow
CST vs control
Emotional exhaustion: Maslach Burnout Inventory: · Healthcare professionals working with people who have cancer
Communication skills training for healthcare professionals working with people who have cancer (2018) · Cochrane
no estimate extracted3 studies · 202 participantsLow
CST vs control
Patient anxiety · Healthcare professionals working with people who have cancer
Communication skills training for healthcare professionals working with people who have cancer (2018) · Cochrane
no estimate extracted3 studies · 770 participantsVery low
Altered WBRT fractionation schedules vs WBRT control
Overall survival: lower‐dose WBRT vs control WBRT (3000 cGy/10 daily fractions)No. of participants: 705(3 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
HR 1.21 [1.04, 1.4]NRModerate
WBRT with radiosensitisers (radiosen) vs WBRT alone
Brain tumour response rates: complete response (CR) and partial response (PR) combinedNo. of participants: 847(6 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
OR 0.84 [0.63, 1.11]NRHigh
WBRT with radiosensitisers (radiosen) vs WBRT alone
Adverse effectsNo. of participants: 2631(8 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRHigh
WBRT with radiosensitisers (radiosen) vs WBRT alone
Quality of lifeNo. of participants: 966(3 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRModerate
WBRT with radiosensitisers (radiosen) vs WBRT alone
Symptom controlNo. of participants: 1814(3 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRModerate
WBRT and radiosurgery vs WBRT
Overall survivalNo. of participants: 358(2 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
HR 0.61 [0.27, 1.39]NRModerate
WBRT and radiosurgery vs WBRT
1‐Year overall brain control ratesNo. of participants: 400(3 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
HR 0.39 [0.25, 0.6]NRHigh
WBRT and radiosurgery vs WBRT
Adverse effectsNo. of participants: 400(3 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRHigh
WBRT and radiosurgery vs WBRT
Intracranial progression‐free durationNo. of participants: 400(3 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRHigh
Radiosurgery alone vs WBRT and radiosurgery
Overall survivalNo. of participants: 403(3 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
HR 1 [0.8, 1.25]NRModerate
Radiosurgery alone vs WBRT and radiosurgery
1‐Year radiosurgery‐targeted lesion controlNo. of participants: 602(4 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
HR 2.73 [1.87, 3.99]NRHigh
Altered WBRT fractionation schedules vs WBRT control
Overall survival: higher‐dose WBRT vs control (3000 cGy/10 daily fractions)No. of participants: 846(4 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
HR 0.97 [0.83, 1.12]NRModerate
Radiosurgery alone vs WBRT and radiosurgery
1‐Year distant brain controlNo. of participants: 602(4 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
HR 2.34 [1.73, 3.18]NRHigh
Radiosurgery alone vs WBRT and radiosurgery
Adverse effectsNo. of participants: 602(4 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRHigh
Radiosurgery alone vs WBRT and radiosurgery
NeurocognitionNo. of participants: 403(3 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRModerate
Radiosurgery alone vs WBRT and radiosurgery
Neurological functionNo. of participants: 544(3 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRModerate
Radiosurgery alone vs WBRT and radiosurgery
Quality of lifeNo. of participants: 271(2 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRModerate
Altered WBRT fractionation schedules vs WBRT control
Overall survival: WBRT 4000 cGy/20 fractions BID vs control WBRT (2000 cGy/4‐5 daily fractions)No. of participants: 203(2 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
HR 1.18 [0.89, 1.56]NRModerate
Altered WBRT fractionation schedules vs WBRT control
Adverse effectsNo. of participants: 1754(9 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRHigh
Altered WBRT fractionation schedules vs WBRT control
Symptom controlNo. of participants: 2877(7 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRModerate
Altered WBRT fractionation schedules vs WBRT control
Overall brain controlNo. of participants: 203(2 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
no estimate extractedNRModerate
Altered WBRT fractionation schedules vs WBRT control: neurological function improvement
Neurological function improvement: lower‐dose WBRT vs control dose WBRT (3000 cGy/10 fractions)No. of participants: 1612(5 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
OR 1.74 [1.06, 2.84]NRModerate
Altered WBRT fractionation schedules vs WBRT control: neurological function improvement
Neurological function improvement: higher‐dose WBRT vs control dose WBRT (3000 cGy/10 fractions)No. of participants: 1480(4 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
OR 1.14 [0.92, 1.42]NRModerate
WBRT with radiosensitisers (radiosen) vs WBRT alone
Overall survivalNo. of participants: 2631(8 RCTs) · patients with newly diagnosed multiple brain metastases
Whole brain radiotherapy for the treatment of newly diagnosed multiple brain metastases (2018) · Cochrane
HR 1.05 [0.99, 1.12]NRModerate
Intervention NR
Progression of CIN to a higher grade of CIN · women with CIN 2 or CIN 3
Non‐steroidal anti‐inflammatory agents to induce regression and prevent the progression of cervical… (2018) · Cochrane
RR 0.54 [0.06, 5.24]25 participantsVery low
Intervention NR
Partial or complete regression of CIN 2 or CIN 3 · women with CIN 2 or CIN 3
Non‐steroidal anti‐inflammatory agents to induce regression and prevent the progression of cervical… (2018) · Cochrane
RR 1.45 [0.93, 2.27]132 participantsModerate
Intervention NR
Complete regression of CIN 2 or CIN 3 · women with CIN 2 or CIN 3
Non‐steroidal anti‐inflammatory agents to induce regression and prevent the progression of cervical… (2018) · Cochrane
RR 1.31 [0.65, 2.67]116 participantsModerate
Hyperbaric oxygen vs air breathing to enhance the effectiveness of radiotherapy
Mortality · People undergoing radiation therapy for head and neck cancer
Hyperbaric oxygenation for tumour sensitisation to radiotherapy (2018) · Cochrane
RR 0.83 [0.7, 0.98]9 studies · 710 participantsHigh
Hyperbaric oxygen vs air breathing
Metastasis · People undergoing radiotherapy for uterine cervical cancer
Hyperbaric oxygenation for tumour sensitisation to radiotherapy (2018) · Cochrane
RR 1.05 [0.84, 1.31]3 studies · 520 participantsHigh
Hyperbaric oxygen vs air breathing
Quality of life ‐ not reported · People undergoing radiotherapy for uterine cervical cancer
Hyperbaric oxygenation for tumour sensitisation to radiotherapy (2018) · Cochrane
no estimate extractedNRNo studies
Hyperbaric oxygen vs air breathing
Adverse effects · People undergoing radiotherapy for uterine cervical cancer
Hyperbaric oxygenation for tumour sensitisation to radiotherapy (2018) · Cochrane
RR 2.05 [1.22, 3.46]3 studies · 456 participantsHigh
Hyperbaric oxygen vs air breathing
Mortality with urinary bladder cancer · People with any one of a mixed group of cancers
Hyperbaric oxygenation for tumour sensitisation to radiotherapy (2018) · Cochrane
RR 0.97 [0.74, 1.27]4 studies · 330 participantsHigh
Hyperbaric oxygen vs air breathing
Failure of local tumour control ‐ not reported · People with any one of a mixed group of cancers
Hyperbaric oxygenation for tumour sensitisation to radiotherapy (2018) · Cochrane
no estimate extractedNRNo studies
Hyperbaric oxygen vs air breathing
Local recurrence ‐ not reported · People with any one of a mixed group of cancers
Hyperbaric oxygenation for tumour sensitisation to radiotherapy (2018) · Cochrane
no estimate extractedNRNo studies
Hyperbaric oxygen vs air breathing
Metastases with urinary bladder cancer · People with any one of a mixed group of cancers
Hyperbaric oxygenation for tumour sensitisation to radiotherapy (2018) · Cochrane
RR 2 [0.58, 6.91]2 studies · 80 participantsModerate