Clinicopathological and Prognostic Value of Gastric Carcinoma Highly Expressed Transcript 1 in Cancer: A Meta-Analysis

Table 3

Subgroup analysis of OS by tumor type, sample size, and NOS score.

Subgroup analysis	No. of studies	No. of patients	Pooled HR (95% CI)	Heterogeneity
				I ^2 (%)	value
Total	8	553	2.28(1.85–2.82)	0.0	0.676
Tumor type
Nondigestive system cancer	6	443	2.24(1.78–2.82)	0.0	0.987
Digestive system cancer	2	110	2.48(1.45–4.24)	75.8	0.042
Sample size
Number <80	5	282	2.28(1.72–3.02)	15.0	0.319
Number ≥80	3	271	2.28(1.65–3.14)	0.0	0.924
NOS score
NOS>7	4	256	2.21(1.59–3.06)	33.8	0.210
NOS ≤7	4	297	2.33(1.77–3.07)	0.0	0.964

OS, overall survival; NOS, Newcastle–Ottawa scale; HR, hazard ratio; CI, confidence interval.