| The causes are clearly different from risk factors, which are the diseases accompanying cofactors. |
| Gender, age and body mass index were taken into consideration as cofactors or covariates. |
| These studies show that sucrose breakdown and starch synthesis are restricted by the levels of adenine and uridine nucleotide cofactors. |
| Because many persons have these genotypes and only a few develop gluten-sensitive enteropathy, investigators have hypothesized that other genes or cofactors may be involved. |
| Other cofactors include smoking, oral contraceptive use, multiparity, and possibly inflammation. |
| Any effect of breast feeding may be limited to a critical period or depend on other cofactors. |
