Table 1.
Characteristics of selected studies for oipA gene on/off and presence/absence status analysis
| Author | Ethnicity | Year | Region |
gastritis or FD |
PUD |
GU |
DU |
GC |
|---|---|---|---|---|---|---|---|---|
| oipA +/total (%) d | oipA +/tota (%) d | oipA +/total (%) d | oipA +/total cases (%) d | oipA +/total cases (%) d | ||||
| For oipA functional status (on/off) studies | ||||||||
| Markovska, R. |
Bulgarian |
2011 |
Europe |
23/35(65.7%) |
33/34(97.1%) |
/ |
/ |
/ |
| Oleastro, M. |
Portuguese |
2010 |
Europe |
18/60(30.0%) |
40/57(70.2%) |
/ |
/ |
/ |
| Schmidt, H. M. |
Chinese |
2010 |
Asia |
45/52(86.5%) |
14/16(87.5%) |
/ |
14/16(87.5%) |
19/22(86.4%) |
| Chiarini, A. |
Italian |
2009 |
Europe |
17/21(81.0%) |
7/10(70.0%) |
/ |
/ |
/ |
| LI, N. |
Chinese |
2009 |
Asia |
66/86(76.7%) |
12/12(100.0%) |
12/12(100.0%) |
/ |
2/2(100.0%) |
| Oleastro, M. |
Portuguesea |
2008 |
Europe |
28/56(50.0%) |
34/50(68.0%) |
/ |
/ |
/ |
| Portugueseb |
2008 |
Europe |
17/53(32.1%) |
26/31(83.9%) |
/ |
/ |
/ |
|
| Yamaoka, Y. |
Colombian |
2006 |
America |
24/40(60.0%) |
36/40(90.0%) |
/ |
36/40(90.0%) |
36/40(90.0%) |
| American |
2006 |
America |
25/40(62.5%) |
34/40(85.0%) |
/ |
34/40(85.0%) |
/ |
|
| de Jonge, R. |
Dutch |
2004 |
Europe |
18/29(62.1%) |
39/49(79.6%) |
16/21(76.2%) |
23/28(82.1%) |
8/9(88.9%) |
| Zambon, C. F. |
Itilian |
2003 |
Europe |
15/31(48.4%) |
14/19(73.7%) |
/ |
/ |
/ |
| Yamaoka, Y. |
American |
2002 |
America |
25/40(62.5%) |
37/41(90.2%) |
/ |
37/41(90.2%) |
20/30(66.7%) |
| Colombian |
2002 |
America |
26/40(65.0%) |
36/40(90.0%) |
/ |
36/40(90.0%) |
34/41(82.9%) |
|
| Yamaoka, Y. |
Japanese |
2000 |
Asia |
40/40(100.0%) |
40/40(100.0%) |
/ |
40/40(100.0%) |
/ |
| For oipA gene (presence/absence) studies | ||||||||
| Ji, C. W. |
Chinese |
2011 |
Asia |
26/46(56.5%) |
45/58(77.6%) |
45/58(77.6%) |
/ |
33/43(76.7%) |
| Ben, M. K. |
Tunisian |
2010 |
Africa |
186/195(95.4%) |
63/78(80.8%) |
/ |
/ |
/ |
| Xie, J. |
Chinese |
2010 |
Asia |
16/51(31.4%) |
12/39(30.8%) |
6/19(31.6%) |
6/20(30.0%) |
19/27(70.4%) |
| Dabiri, H. |
Persians |
2009 |
Asia |
36/57(63.2%) |
2/13(15.4%) |
/ |
/ |
0/4(0.0%) |
| Turkish |
2009 |
Asia |
7/21(33.3%) |
3/5(60.0%) |
/ |
/ |
1/7(14.3%) |
|
| Kurds, etc.c |
2009 |
Asia |
8/13(61.5%) |
4/4(100.0%) |
/ |
/ |
/ |
|
| Zhou, M. |
Chinese |
2009 |
Asia |
21/40(52.5%) |
37/40(92.5%) |
/ |
37/40(92.5%) |
18/20(90.0%) |
| Salih, B. A. |
Turkish |
2007 |
Asia |
17/21(81.0%) |
13/14(92.9%) |
/ |
/ |
/ |
| Zhang, J. | Chinese | 2004 | Asia | 11/42(26.2%) | 16/16(100.0%) | 16/16(100.0%) | / | / |
a, for adult study population; b, for children study population; c, Kurds, Lurs, Afghanis, Arabs; d, for oipA gene presence/absence studies, oipA(+) means oipA gene positive, while for oipA functional status on/off studies, oipA(+) means oipA gene “on” status.
Abbreviations: FD functional dyspepsia, PUD peptic ulcer disease, GU gastric ulcer, DU duodenal ulcer, GC gastric cancer.