Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

250 questions · 253 findings · 22 reviews

No studies found 32 · 12.6%GRADE not reported 19 · 7.5%Very low 46 · 18.2%Low 83 · 32.8%Moderate 57 · 22.5%High 16 · 6.3%

Chemotherapy alone vs same chemotherapy plus radiotherapy

Secondary malignant neoplasms · Patients with untreated Hodgkin lymphoma (early and advanced stages)

Chemotherapy alone may leads to lower secondary malignant neoplasms compared with same chemotherapy plus radiotherapy (low certainty).

1 finding from 1 review

Chemotherapy alone vs same chemotherapy plus radiotherapy

Death · Patients with untreated Hodgkin lymphoma (early and advanced stages)

Chemotherapy alone showed no clear difference in death compared with same chemotherapy plus radiotherapy (moderate certainty).

1 finding from 1 review

Chemotherapy alone vs same chemotherapy plus radiotherapy

Progression/relapse · Patients with untreated Hodgkin lymphoma (early and advanced stages)

Chemotherapy alone showed no clear difference in progression/relapse compared with same chemotherapy plus radiotherapy (moderate certainty).

1 finding from 1 review

Surgery +/- radiotherapy + (adjuvant) chemotherapy vs Surgery +/- radiotherapy alone (observation or adjuvant radiotherapy only)

Overall survival, post-surgery chemotherapy vs surgery alone (no radiotherapy) · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Surgery +/- radiotherapy + (adjuvant) chemotherapy showed no clear difference in overall survival, adjuvant chemotherapy vs observation alone… compared with surgery +/- radiotherapy alone (observation or adjuvant radiotherapy… (moderate certainty).

1 finding from 1 review

GnRH agonist plus chemotherapy vs chemotherapy alone

Menstruation recovery or maintenance: · premenopausal women with malignant conditions, receiving GnRH agonist before or in parallel to chemotherapy

GnRH agonist plus chemotherapy may leads to higher menstruation recovery or maintenance: compared with chemotherapy alone (low certainty).

2 findings from 1 review

GnRH agonist plus chemotherapy vs chemotherapy alone

Premature ovarian failure · premenopausal women with malignant conditions, receiving GnRH agonist before or in parallel to chemotherapy

GnRH agonist plus chemotherapy probably leads to lower premature ovarian failure compared with chemotherapy alone (moderate certainty).

1 finding from 1 review

GnRH agonist plus chemotherapy vs chemotherapy alone

Pregnancy · premenopausal women with malignant conditions, receiving GnRH agonist before or in parallel to chemotherapy

GnRH agonist plus chemotherapy showed no clear difference in pregnancy compared with chemotherapy alone (low certainty).

1 finding from 1 review

GnRH agonist plus chemotherapy vs chemotherapy alone

Ovulation · premenopausal women with malignant conditions, receiving GnRH agonist before or in parallel to chemotherapy

GnRH agonist plus chemotherapy may leads to higher ovulation compared with chemotherapy alone (low certainty).

1 finding from 1 review

GnRH agonist plus chemotherapy vs chemotherapy alone

Adverse effects: hot flush · premenopausal women with malignant conditions, receiving GnRH agonist before or in parallel to chemotherapy

It is very uncertain whether gnRH agonist plus chemotherapy changes adverse effects: hot flush compared with chemotherapy alone (very low certainty).

1 finding from 1 review

GnRH agonist plus chemotherapy vs chemotherapy alone

Adverse effects: vaginal dryness · premenopausal women with malignant conditions, receiving GnRH agonist before or in parallel to chemotherapy

GnRH agonist plus chemotherapy showed no clear difference in adverse effects: vaginal dryness compared with chemotherapy alone (moderate certainty).

1 finding from 1 review

GnRH agonist‐antagonist cotreatment plus chemotherapy vs chemotherapy alone

Pregnancy · premenopausal women with malignant conditions, receiving GnRH agonist before or in parallel to chemotherapy

It is very uncertain whether gnRH agonist‐antagonist cotreatment plus chemotherapy changes pregnancy compared with chemotherapy alone (very low certainty).

1 finding from 1 review

GnRH agonist‐antagonist cotreatment plus chemotherapy vs chemotherapy alone

Menstruation recovery or maintenance: · premenopausal women with malignant conditions, receiving GnRH agonist before or in parallel to chemotherapy

It is very uncertain whether gnRH agonist‐antagonist cotreatment plus chemotherapy changes menstruation recovery or maintenance: compared with chemotherapy alone (very low certainty).

2 findings from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Overall survival, induction platinum + 5-fluorouracil prior to surgery vs surgery alone · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… showed no clear difference in overall survival, induction platinum + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone (low certainty).

1 finding from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Overall survival, induction platinum + 5-fluorouracil prior to radiotherapy vs radiotherapy alone · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… showed no clear difference in overall survival, induction platinum + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone (moderate certainty).

1 finding from 1 review

Induction chemotherapy plus locoregional treatment (radiotherapy and/or surgery) vs Locoregional treatment (radiotherapy and/or surgery) alone

Disease-free survival · People receiving curative-intent treatment for oral cavity and oropharyngeal (squamous cell) cancer

Induction chemotherapy plus locoregional treatment (radiotherapy… led to lower disease-free survival, induction platinum + 5-fluorouracil prior to… compared with locoregional treatment (radiotherapy and/or surgery) alone; GRADE not reported.

1 finding from 1 review