Tkf. Chow et al., HELICOBACTER-PYLORI IN MELBOURNE CHINESE IMMIGRANTS - EVIDENCE FOR ORAL-ORAL TRANSMISSION VIA CHOPSTICKS, Journal of gastroenterology and hepatology, 10(5), 1995, pp. 562-569
The Helicobacter pylori seroprevalence in a representative population
of 328 Melbourne Chinese immigrants (162 men and 166 women) aged 25 ye
ars and older were studied. The population consisted of Chinese people
born in China/Hong Kong (n = 110, 33.5%), Vietnam (n = 79, 24.1%), Ma
laysia/Singapore (n = 102, 31.1%), and elsewhere (n = 37, 11.3%). The
overall seroprevalence of H. pylori was 59.5%; 60.5% in men and 58.4%
in women. Gender specific analysis showed associations between higher
seroprevalence and several socio-demographic factors; in men, age (P <
0.0001), lower education level (P < 0.002), cigarette smoking (P < 0.
042), the use of antibiotics (P < 0.015) and chopsticks (P < 0.047), a
nd in women, lower socioeconomical status [education level (P < 0.030)
, gross household income (P < 0.0001) and occupational status (P < 0.0
001)] and use of chopsticks (P < 0.002). Seroprevalence differed betwe
en immigrants of various birthplaces (P < 0.001); those born in Malays
ia/Singapore (43.1%) were lower than those born in China/Hong Kong (68
.2%), Vietnam (68.4%), and elsewhere (59.5%). Immigrants of various bi
rthplaces also differed in their pattern of socio-demographics. Multiv
ariate analyses showed that risk factors for H. pylori infection withi
n the Melbourne Chinese immigrants were, in men, age (B = 1.081) and b
irthplace (B = 1.769) and, in women, household income (B = 0.541) and
use of chopsticks (B = 1.654). This study suggests person-to-person tr
ansmission of H. pylori via the oral-oral route with ethno-specific fo
od practices an important risk factor.