Most common genotypes associated with peptic ulcer disease | Iran | Europe | Southeast Asia | Middle East |
---|---|---|---|---|
s1 | + | + | + | + |
s2 | – | – | – | – |
m1 | + | + | + | + |
m2 | – | – | – | – |
s1m1 | – | – | – | – |
s1m2 | + | – | – | – |
s2m1 | – | – | – | – |
s2m2 | – | – | – | – |
i1 | – | – | + | – |