Table 1.
Characteristics of studies included in the systematic analyses
| Authors (references) | Countries | Gastritis/NUD
|
PUD
|
GC
|
Gastritis/NUD
|
PUD
|
GC
|
|---|---|---|---|---|---|---|---|
| iceA1+/total (%) | iceA1+/total (%) | iceA1+/total (%) | iceA2+/total (%) | iceA2+/total (%) | iceA2+/total (%) | ||
| Ashour et al15 | Brazil | 15/59 (25.42) | 5/47 (10.64) | 4/36 (11.11) | 48/59 (81.36) | 46/47 (97.87) | 35/36 (97.22) |
| Chomvarin et al20 | Thailand | 29/62 (46.77) | 15/34 (44.12) | 7/16 (43.75) | 19/62 (30.65) | 12/34 (35.29) | 6/16 (37.5) |
| Chen et al22 | People’s Republic of China | 59/70 (84.29) | 50/59 (84.75) | – | 28/70 (40.00) | 32/59 (54.24) | – |
| Chen et al21 | People’s Republic of China | 18/30 (60.00) | 18/26 (69.23) | 12/14 (85.71) | – | – | – |
| Gong et al23 | People’s Republic of China | 146/161 (90.68) | 32/33 (96.97) | 23/28 (82.14) | 136/161 (84.47) | 31/33 (93.94) | 25/28 (89.29) |
| Han et al24 | People’s Republic of China | 29/43 (67.44) | 56/77 (72.73) | 18/21 (85.71) | 8/43 (18.60) | 10/77 (12.99) | 2/21 (9.52) |
| Ito et al25 | Japan | 51/72 (70.83) | 48/68 (70.59) | – | 21/72 (29.17) | 20/68 (29.41) | – |
| Li et al26 | People’s Republic of China | 11/28 (39.29) | 7/22 (31.82) | – | 25/28 (89.29) | 22/22 (100) | – |
| Liu et al27 | People’s Republic of China | 39/102 (38.24) | 14/32 (43.75) | 20/30 (66.67) | 29/102 (28.43) | 10/32 (31.25) | 11/30 (36.67) |
| Miciuleviciene et al28 | Lithuania | 18/44 (40.91) | 17/37 (45.95) | – | 24/44 (54.55) | 16/37 (43.24) | – |
| Smith et al17 | Nigeria | 20/22 (90.91) | 18/19 (94.74) | – | 3/22 (13.64) | 1/19 (5.26) | – |
| Wang et al29 | People’s Republic of China | 42/88 (47.73) | 28/53 (52.83) | 7/11 (63.64) | 41/88 (46.59) | 26/53 (49.06) | 6/11 (54.55) |
| Wang et al18 | People’s Republic of China | 77/108 (71.30) | 70/77 (90.91) | – | – | – | – |
| Wei et al13 | People’s Republic of China | 37/58 (63.79) | 72/86 (83.72) | 42/53 (79.25) | 24/58 (41.38) | 23/86 (26.74) | 12/53 (22.64) |
| Yamaoka et al14 | Colombia | 17/34 (50.00) | 16/27 (59.26) | 24/46 (52.17) | 25/34 (73.53) | 15/27 (55.56) | 32/46 (69.57) |
| Yamaoka et al14 | Korea | 21/22 (95.45) | 49/53 (92.45) | 51/60 (85.00) | 5/22 (22.73) | 16/53 (30.19) | 20/60 (33.33) |
| Yamaoka et al14 | Japan | 23/30 (76.67) | 37/48 (77.08) | 28/34 (82.35) | 13/30 (43.33) | 18/48 (37.50) | 12/34 (35.29) |
| Yamaoka et al14 | USA | 8/26 (30.77) | 3/28 (10.71) | 3/16 (18.75) | 18/26 (69.23) | 28/28 (100) | 12/16 (75.00) |
| You et al16 | People’s Republic of China | 45/50 (90.00) | 6/10 (60.00) | – | 6/50 (12.00) | 3/10 (30.00) | – |
| Zhang et al12 | People’s Republic of China | 30/69 (43.48) | 29/49 (59.18) | 6/20 (30.00) | 32/69 (46.38) | 32/49 (65.31) | 2/20 (10.00) |
| Zheng et al30 | People’s Republic of China | 27/39 (69.23) | 44/62 (70.97) | 14/20 (70.00) | – | – | – |
| Zhuang et al31 | People’s Republic of China | 23/30 (76.67) | 44/58 (75.86) | – | 8/30 (26.67) | 11/58 (18.97) | 2/20 (10.00) |
Note: “–” indicated data not provided in study.
Abbreviations: PUD, peptic ulcer disease; NUD, nonulcer dyspepsia; GC, gastric carcinoma.