Severity and duration of fever are independent risk factors for CNS involvement.
Lastly, a fever episode independent of TD was suggestive of some low-grade inflammatory and/or immunological processes [ 31, 32].
Young age and presence of fever are independent risk factors for hyperparasitaemia which is associated with an increased risk of progression to cerebral malaria.
We also assume that presence of fever is independent of exposure risk awareness, so that the fraction of travellers in each respective category is: f (1 − g); (1 − f )g; (1 − f )(1 − g); fg.
In the first rule of GA, to be male, having pain not radiating to the back, and having no fever composed the independent variables.
Additionally, fever was an independent risk factor for hyperparasitaemia.
Symptomatic infection and fever were other independent predictors of delirium.
Our questionnaire did not allow to assess the chronology of TD independent fever.
Finally, multivariate analysis only identified fever as an independent clinical predictor of radiographic abnormalities (p = 0.04) (Table 6).
After an initial trial phase of three months we added questions about syndromes abroad (health impairments reported abroad, i.e. TD independent fever) and attitudes towards diarrhoea (catering, adherence to 'cook it, boil it, peel it or forget it', tap water consumption) [ 13, 14].
