Table 3. Meta-analysis about survivin expression in ESCC cytoplasm.

Clinicopathological features	N	Cases	OR	95% CI	P value for OR	P value for heterogeneity
Differentiation grade	2	113	0.47	0.05–4.55	0.52	0.02
Lymph node status	2	113	0.53	0.21–1.32	0.17	0.17
Stage	2	113	0.36	0.14–0.93	0.04	0.36
Metastasis	2	113	1.09	0.39–3.06	0.87	0.48

N: number of studies; OR: odds ratio; CI: confidence interval.