Case Control Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. Jul 21, 2015; 21(27): 8358-8365
Published online Jul 21, 2015. doi: 10.3748/wjg.v21.i27.8358
Table 2 Incidence of second primary cancers in gastric cancer patients n (%)
OverallEGC groupAGC groupP value
(n = 413)(n = 184)(n = 229)
Second primary cancer38 (9.2)17 (9.2)21 (9.2)0.981
Synchronous cancer18 (4.4)8 (4.3)10 (4.4)0.993
Metachronous cancer20 (4.8)9 (4.9)11 (4.8)0.967