Cochrane · systematic review · CD008415

Post‐surgical chemotherapy versus surgery alone for resectable gastric cancer

Diaz‐Nieto, R, Orti‐Rodríguez, R, Winslet, M · Cochrane Database of Systematic Reviews · 2013 · Cochrane Library

GutAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
10
current version
GRADE rated
10
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 0 · 0%Moderate 8 · 80%High 2 · 20%

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.

Questions and results

Post‐surgical chemotherapy compared to surgery alone for resectable gastric cancer

Population: patients with resectable gastric cancer
2 questions
OutcomeEffectEvidenceStatus / GRADE
Overall Survival (OS)
Post‐surgical chemotherapy vs surgery alone
HR 0.85 [0.8, 0.9]34 studies · 7523 participantsHigh
Disease Free Survival
Post‐surgical chemotherapy vs surgery alone
HR 0.79 [0.72, 0.87]15 studies · 4133 participantsHigh

Subgroup analysis for resectable gastric cancer

Population: patients with resectable gastric cancer
4 questions
OutcomeEffectEvidenceStatus / GRADE
Chemobased OS ‐ 5‐FU based chemotherapy OS
HR 0.88 [0.83, 0.94]28 studies · 5694 participantsModerate
Chemobased OS ‐ Platinum‐based chemotherapy OS
HR 0.9 [0.81, 1]9 studies · 1504 participantsModerate
Chemobased DFS ‐ 5‐FU based chemotherapy DFS
HR 0.86 [0.78, 0.95]13 studies · 2944 participantsModerate
Chemobased DFS ‐ Platinum‐based chemotherapy DFS
HR 0.89 [0.75, 1.06]4 studies · 969 participantsModerate

Subgroup analysis for resectable gastric cancer

Population: patients with resectable gastric cancer
4 questions
OutcomeEffectEvidenceStatus / GRADE
Stage OS analysis ‐ T1/2 OS
HR 0.86 [0.71, 1.05]5 studies · 1146 participantsModerate
Stage OS analysis ‐ T3/4 OS
HR 0.66 [0.41, 1.08]4 studies · 1008 participantsModerate
Lymph node mets analysis ‐ N‐ OS
HR 0.74 [0.41, 1.33]2 studies · 402 participantsModerate
Lymph node mets analysis ‐ N+ OS
HR 0.78 [0.67, 0.91]4 studies · 877 participantsModerate