Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

356 questions · 373 findings · 42 reviews

No studies found 47 · 12.6%GRADE not reported 21 · 5.6%Very low 68 · 18.2%Low 92 · 24.7%Moderate 97 · 26%High 48 · 12.9%

Metformin‐sulphonylurea (second‐ or third‐generation) combination therapy vs metformin plus another antidiabetic drug

M + GLP1‐A
2 findings from 1 review

Metformin‐sulphonylurea (second‐ or third‐generation) combination therapy vs metformin plus another antidiabetic drug

M + DPP4‐I

It is very uncertain whether metformin‐sulphonylurea (second‐ or third‐generation) combination… changes M + DPP4‐I compared with metformin plus another antidiabetic drug (very low certainty).

3 findings from 1 review

Metformin‐sulphonylurea (second‐ or third‐generation) combination therapy vs metformin plus another antidiabetic drug

M + thiazolidinedione

It is very uncertain whether metformin‐sulphonylurea (second‐ or third‐generation) combination… changes M + thiazolidinedione compared with metformin plus another antidiabetic drug (very low certainty).

2 findings from 1 review

Metformin‐sulphonylurea (second‐ or third‐generation) combination therapy vs metformin plus another antidiabetic drug

M + nateglinide
4 findings from 1 review
Show 1 more finding

Metformin‐sulphonylurea (second‐ or third‐generation) combination therapy vs metformin plus another antidiabetic drug

M + SGLT2‐I

It is very uncertain whether metformin‐sulphonylurea (second‐ or third‐generation) combination… changes M + SGLT2‐I compared with metformin plus another antidiabetic drug (very low certainty).

2 findings from 1 review

Combination chemotherapy vs single‐agent chemotherapy

Overall survival (3 years) · people with resectable stage II and III rectal cancer undergoing preoperative chemoradiation followed by surgery

It is very uncertain whether combination chemotherapy changes overall survival (3 years) compared with single‐agent chemotherapy (very low certainty).

1 finding from 1 review

Combination chemotherapy vs single‐agent chemotherapy

Disease-free survival · people with resectable stage II and III rectal cancer undergoing preoperative chemoradiation followed by surgery

It is very uncertain whether combination chemotherapy changes disease‐free survival (3 years) compared with single‐agent chemotherapy (very low certainty).

1 finding from 1 review

Combination chemotherapy vs single‐agent chemotherapy

Complete response rate after preoperative chemoradiation (ypCR) · people with resectable stage II and III rectal cancer undergoing preoperative chemoradiation followed by surgery

Combination chemotherapy leads to higher complete response rate after preoperative chemoradiation (ypCR) compared with single‐agent chemotherapy (high certainty).

1 finding from 1 review

Combination chemotherapy vs single‐agent chemotherapy

Toxicity ‐ early adverse events G3/4 · people with resectable stage II and III rectal cancer undergoing preoperative chemoradiation followed by surgery

Combination chemotherapy probably leads to higher toxicity ‐ early adverse events G3/4 compared with single‐agent chemotherapy (moderate certainty).

1 finding from 1 review

Combination chemotherapy vs single‐agent chemotherapy

Metastases intra‐abdominal · people with resectable stage II and III rectal cancer undergoing preoperative chemoradiation followed by surgery

Combination chemotherapy showed no clear difference in metastases intra‐abdominal compared with single‐agent chemotherapy (moderate certainty).

1 finding from 1 review

Monotherapy vs combination therapy compared

Clinical failure—same beta lactam Antibiotic modifications · patients with sepsis

It is very uncertain whether monotherapy changes clinical failure—same beta lactam Antibiotic modifications compared with combination therapy compared (very low certainty).

1 finding from 1 review

Monotherapy vs combination therapy compared

Clinical failure—different beta lactam Antibiotic modifications · patients with sepsis

It is very uncertain whether monotherapy changes clinical failure—different beta lactam Antibiotic modifications compared with combination therapy compared (very low certainty).

1 finding from 1 review