Table 4

 Univariate analysis of factors associated with clarithromycin resistance among paediatric patients not previously treated for Helicobacter pylori infection (n = 800)

ClarithromycinOR95% CIp Value
Susceptible n = 633Resistant n = 167
p Value obtained by a univariate logistic model.
SexFemale364761
Male269911.62(1.15 to 2.82)0.006
Age (years)>11275561
6–11278781.38(0.94 to 2.02)0.100
<680332.03(1.23 to 3.33)0.005
Country of birthWestern Europe4371341
Eastern Europe88140.52(0.29 to 0.94)0.031
Asia, Africa, America and Middle East108190.57(0.34 to 0.97)0.038
Mother’s country of birthWestern Europe258941
Eastern Europe98190.53(0.31 to 0.92)0.023
Asia, Africa, America and Middle East277540.54(0.37 to 0.78)0.001
Country of residenceNorthern Europe301 (3.3%)1
Southern Europe12259 (32.5%)14.51(1.93 to 108.98)0.009
Eastern Europe4710 (17.5%)6.38(0.78 to 52.44)0.085
Western Europe43497 (18.2%)6.71(0.90 to 49.77)0.063
Country of residenceNorthern, Eastern and Western Europe511108 (17.4)1
Southern Europe12259 (32.5%)2.29(1.57 to 3.33)<10−3
Date of investigation⩽1999178451
2000146481.30(0.82 to 2.06)0.265
2001161441.08(0.68 to 1.72)0.744
⩾2002148300.80(0.48 to 1.34)0.397
Peptic ulcerNo5891611
Yes4460.50(0.21 to 1.19)0.117