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Subgroup analysis of association between tumor size and prognosis.
| Factor | Standard | No. | Q-value | P-value | I2 | OR | 95% CI |
|---|---|---|---|---|---|---|---|
| Year | Before 2009 | 2 | 0.13 | 0.014 | 0.0% | 0.800 | 0.670–0.955 |
| After 2009 | 9 | 4.33 | 0.000 | 0.0% | 1.498 | 1.357–1.653 |
No., the number of articles included; CI, confidence interval; OR, odds ratio.
