TABLE 2

Systematic Literature Review Univariate Analysis

Clinicopathologic parameter	No. of studies combined	No. of patients	Patients with ¹⁸F-FDG–avid tumor	Odds ratio	P
Tumor site
Proximal third	9	177	134 (75.7%)	1.62 [1.05–2.50]	0.03^*
Distal two thirds	9	612	424 (69.3%)	1
Tumor size
Small (<3 cm)	5	288	75 (26%)	1	<0.00001^*
Large (>3 cm)	5	295	209 (70.8%)	7.01 [4.78–10.27]
WHO classification
SRC	8	205	93 (45.4%)	1	0.02^*
Non-SRC	8	755	487 (64.5%)	2.24 [1.12–4.50]
Lauren classification
Diffuse	8	391	212 (54.2%)	1	0.14
Intestinal	8	479	284 (59.3%)	1.04 [0.90–2.19]
Stage
EGC	7	370	99 (26.8%)	1	<0.00001^*
AGC	13	878	752 (85.6%)	11.74 [8.19–16.82]
GLUT1
Positive	1	24	17 (70.8%)	17 [3.03–95.3]	<0.0003^*
Negative	1	16	2 (12.5%)	1