Association between Habitual Dietary Salt Intake and Risk of Gastric Cancer: A Systematic Review of Observational Studies

Table 7

High versus low categories of salt and gastric cancer through salt.

Study or subgroup	High salt		Low salt			Odds ratio	Odds ratio
	Events	Total	Events	Total	Weight	M-H, fixed, 95% CI	M-H, fixed, 95% CI
Peleteiro et al. 2011 [11]	144	364	132	346	2.2%	1.06 [0.78, 1.44]
Kim et al. 2010 [18]	2779	439134	7670	1450841	97.1%	1.20 [1.15, 1.25]
Jose M. Ramón et al. 1993 [14]	27	63	33	108	0.4%	1.70 [0.89, 3.25]
Shikata et al. 2006 [19]	30	564	12	663	0.3%	3.05 [1.55, 6.01]
Total (95% CI)		440125		1451958	100.0%	1.20 [1.15,  1.26]
Total events	2980		7847
Heterogeneity: Chi^2 = 9.01, df = 3 (𝑃=0.03); 𝐼^2 = 67%
Test for overall effect: 𝑍 = 8.43 (𝑃<0.00001)