Table 2 Subgroup analysis of STAT3/p-STAT3 expression and FIGO stage of ovarian cancer
Stratification | Pooled OR (95% CI) random effects | I2 (%) | p value of Q test |
|---|---|---|---|
Year | |||
  ≤ 2010 | 0.487 (0.309–0.768) | 60.2% | 0.039 |
  > 2010 | 0.408 (0.291–0.572) | 63.6% | 0.011 |
N pts | |||
  < 100 | 0.147 (0.072–0.299) | 0.0% | 0.907 |
  ≥ 100 | 0.536 (0.397–0.722) | 67.9% | 0.008 |
Scoring method | |||
 EI | 0.417 (0.306–0.569) | 58.4% | 0.014 |
 Non-EI | 0.492 (0.282–0.859) | 72.5% | 0.026 |
Primary antibody | |||
 Rabbit antibody | 0.172 (0.032–0.925) | 30.3% | 0.208 |
 Others | 0.457 (0.323–0.645) | 74.2% | 0.002 |