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What do systematic reviews say?

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Evidence found and GRADE certainty

3,971 questions · 9,849 findings · 853 reviews

No studies found 1,150 · 11.7%GRADE not reported 3,387 · 34.4%Very low 1,963 · 19.9%Low 1,809 · 18.4%Moderate 1,207 · 12.3%High 333 · 3.4%

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Gefitinib vs pemetrexed + carboplatin with pemetrexed maintenance

Overall survival · EGFR M+ patients with NSCLC

Gefitinib showed no clear difference in overall survival compared with pemetrexed + carboplatin with pemetrexed maintenance (moderate certainty).

1 finding from 1 review

Gefitinib vs pemetrexed + carboplatin with pemetrexed maintenance

Progression‐free survival · EGFR M+ patients with NSCLC

Gefitinib probably leads to lower progression‐free survival compared with pemetrexed + carboplatin with pemetrexed maintenance (moderate certainty).

1 finding from 1 review

Capecitabine‐containing regimens vs chemotherapy regimens without capecitabine

Overall survival: Median length of · people with metastatic breast cancer

Capecitabine‐containing regimens showed no clear difference in overall survival (OS)median compared with chemotherapy regimens without capecitabine (high certainty).

1 finding from 1 review

Capecitabine‐containing regimens vs chemotherapy regimens without capecitabine

OS: hormone receptor‐positivemedian · people with metastatic breast cancer

Capecitabine‐containing regimens showed no clear difference in OS: hormone receptor‐positivemedian compared with chemotherapy regimens without capecitabine (high certainty).

1 finding from 1 review

Capecitabine‐containing regimens vs chemotherapy regimens without capecitabine

OS: hormone receptor‐negativemedian · people with metastatic breast cancer

Capecitabine‐containing regimens showed no clear difference in OS: hormone receptor‐negativemedian compared with chemotherapy regimens without capecitabine (high certainty).

1 finding from 1 review

Capecitabine‐containing regimens vs chemotherapy regimens without capecitabine

Progression‐free survival · people with metastatic breast cancer

Capecitabine‐containing regimens probably leads to lower progression‐free survival (PFS)median compared with chemotherapy regimens without capecitabine (moderate certainty).

1 finding from 1 review

Capecitabine‐containing regimens vs chemotherapy regimens without capecitabine

PFS: hormone receptor‐positivemedian · people with metastatic breast cancer

Capecitabine‐containing regimens probably leads to lower PFS: hormone receptor‐positivemedian compared with chemotherapy regimens without capecitabine (moderate certainty).

1 finding from 1 review

Capecitabine‐containing regimens vs chemotherapy regimens without capecitabine

PFS: hormone receptor‐negativemedian · people with metastatic breast cancer

Capecitabine‐containing regimens showed no clear difference in PFS: hormone receptor‐negativemedian compared with chemotherapy regimens without capecitabine (moderate certainty).

1 finding from 1 review

Capecitabine‐containing regimens vs chemotherapy regimens without capecitabine

Objective response rate · people with metastatic breast cancer

Capecitabine‐containing regimens showed no clear difference in objective response rate compared with chemotherapy regimens without capecitabine (moderate certainty).

1 finding from 1 review

Chloral hydrate oral (70 mg/kg) vs promethazine

Proportion of children with inadequate level of sedation (Ramsay score below 4) · children undergoing neurodiagnostic procedures

Chloral hydrate oral (70 mg/kg) may leads to lower proportion of children with inadequate level of sedation (Ramsay… compared with promethazine oral (1 mg/kg) (low certainty).

1 finding from 1 review