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Table 4 Characteristics of individual studies of KRAS and GNAS mutations in patients with IPMN according to the macroscopic duct types

From: KRAS, GNAS, and RNF43 mutations in intraductal papillary mucinous neoplasm of the pancreas: a meta-analysis

Study KRAS mutation (mutation/total) (%) GNAS mutation (mutation/total) (%)
Main duct Branch duct Mixed duct Main duct Branch duct Mixed duct
Fritz S 2/2 (100) 0/2 (0) 6/16 (38)    
Hosada W 25/41 (61) 34/50 (68)   26/41 (63) 29/50 (58)  
Ideno N     2/6 (33) 22/45 (49) 7/11 (64)
Kaino M 5/5 (100) 7/7 (100)     
Kobayashi N 1/2 (50) 12/20 (60)     
Kondo H 3/3 (100) 9/10 (90)     
Kuboki Y 29/50 (58) 42/81 (52) 25/41 (61) 27/50 (54) 41/81 (51) 15/41 (37)
Lee LS 3/9 (33) 6/10 (60)   4/9 (44) 4/10 (40)  
Singhi AD 6/13 (46) 23/28 (82) 6/9 (67) 4/13 (31) 11/28 (39) 3/9 (33)
Takano S     18/33 (55) 16/49 (33)  
Wu J 23/35 (66) 58/64 (91) 21/28 (75) 24/35 (69) 38/64 (59) 20/28 (71)