Table 5. Multiple linear regression models including ferritin or haemoglobin as dependent variables and age, gender and H. pylori (HP) infection as independent variables in children from United Kingdom (n = 81), Chile (n = 105) and Brazil (n = 125).
United Kingdom | Chile | Brazil | ||||||||||
Univariateanalysis | Multivariateanalysis | Univariateanalysis | Multivariateanalysis | Univariateanalysis | Multivariateanalysis | |||||||
Beta | P value | Beta | P value | Beta | P value | Beta | P value | Beta | P value | Beta | P value | |
Coefficient | coefficient | coefficient | coefficient | coefficient | coefficient | |||||||
FERRITIN | ||||||||||||
Age | −0.135 | 0.25 | – | – | −0.046 | 0.64 | – | – | −0.048 | 0.59 | – | – |
Gender | −0.157 | 0.02 | – | – | −0.165 | 0.09 | −0.169 | 0.08 | −0.286 | 0.001 | −0.276 | 0.02 |
HP infection | −0.043 | 0.71 | – | – | −0.211 | 0.03 | −0.214 | 0.03 | −0.155 | 0.08 | −0.197 | 0.05 |
HAEMOGLOBIN | ||||||||||||
Age | 0.451 | <0.001 | 0.46 | <0.001 | 0.187 | 0.06 | 0.294 | 0.005 | 0.280 | 0.002 | 0.304 | 0.001 |
Gender | −0.161 | 0.17 | −0.199 | 0.07 | −0.127 | 0.19 | −0.248 | 0.01 | −0.151 | 0.09 | −0.140 | 0.10 |
HP infection | 0.216 | 0.06 | 0.069 | 0.53 | −0.182 | 0.06 | −0.197 | 0.03 | −0.164 | 0.09 | −0.149 | 0.09 |