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. 2017 Dec 23;9(9):8629–8641. doi: 10.18632/oncotarget.23667

Figure 7. Begg’s funnel plot of publication bias for clinicopathological features.

Figure 7

(A) Lymph nodes metastases (–/+) (random-effects model), (B) Tumor differentiation grade (low, moderate or high differentiated) (random-effects model), (C) Tumor TNM stage (I–II/III-IV) (random-effects model), (D) PR status (–/+) (fixed-effects model), (E) HER-2 status (–/+) (fixed-effects model), (F) ER status (–/+) (random-effects model): The results indicated a slight bias in tumor differentiation grade and ER status with their P values being 0.005, 0.042, respectively.