Meta-Analysis
Copyright ©The Author(s) 2016.
World J Meta-Anal. Dec 26, 2016; 4(6): 118-123
Published online Dec 26, 2016. doi: 10.13105/wjma.v4.i6.118
Table 2 Studies of patients who underwent surgery for Siewert type I and II pT1 adenocarcinomas with lymph node status
Ref.nSiewert classificationTNM classification
SM subdivision
T1a, n (%)T1b, n (%)SM1, n (%)SM2, n (%)SM3, n (%)
Westerterp et al[6]120I, II1/54 (1.8)18/66 (27.2)0/25 (0)6/23 (20)12/18 (56)
Barbour et al[7]85I, II0/35 (0)9/50 (18)---
Lees et al[8]126I, II1/75 (1.3)11/51 (21.6)4/19 (21)1/9 (11.1)6/23 (26.1)
Griffin et al[9]119I, II0/54 (0)8/65 (12.3)---
Lee et al[10]258I, II9/122 (7.3)35/136 (25.7)---
Present study85I, II1/15 (6.6)10/70 (14.2)0/7 (0)4/43 (9.3)6/20 (30)
Total793I, II12/35591/438
(3.4%, 95%CI: 1.5-5.2)(20.7%, 95%CI: 16.9-24.5)