Table 2 Meta-regression and stratified analysis of pooled odds ratios of R1 resection for tumor recurrence.

From: Prognostic role of microscopically positive margins for primary gastrointestinal stromal tumors: a systematic review and meta-analysis

Stratified analysis

No. of studies

No. of patients

Pooled OR (95% CI)

Heterogeneity

Meta-regression

Fixed

Random

I2

p-value

Residual I2

p-value

Overall

9

1695

0.891 (0.653–1.215)

1.203 (0.632–2.287)

66.2%

0.003*

  

Adjuvant imatinib treatment

      

63.98%

0.592

Yes

3

592

1.474 (0.849–2.558)

1.477 (0.846–2.579)

0.0%

0.513

  

No

6

1103

0.715 (0.490–1.041)

1.092 (0.445–2.683)

72.4%

0.003*

  
  1. OR, odds ratios; CI, confidence interval; Fixed, fixed-effects model; Random, random-effects model; *indicating heterogeneity.
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