Table 5: High versus low categories of salt and gastric cancer in Asia.

Study or subgroupHigh saltLow saltOdds ratio Odds ratio
EventsTotalEventsTotalWeightM-H, fixed, 95% CIM-H, fixed, 95% CI

Pourfarzi et al. 2009 [13]121213953940.8%4.14 [2.90, 5.91]808120.fig.004
Campos et al. 2006 [12]19301976170.2%3.68 [1.72, 7.89]
Kim et al. 2010 [18]27794391347670145094194.7%1.20 [1.15, 1.25]
Shikata et al. 2006 [19]30564126630.3%3.05 [1.55, 6.01]
Ngoan et al. 2002 [20]86573549150.2%1.72 [0.79, 3.72]
Tsugane et al. 2004 [21]1308904858864831.6%2.18 [1.60, 2.97]
Lee et al. 2003 [16]4769221990.1%17.19 [8.77, 33.68]
Yang et al. 2011 [17]1804821204182.2%1.48 [1.12, 1.96]
Total (95% CI)5301971544630100.0%1.27 [1.22, 1.32]
Total events33148209
Heterogeneity: Chi2 = 133.98, df = 7 ( ); = 95%
Test for overall effect: = 11.22 ( )