Selected characteristics of typhoid fever patients, based on baseline presentation history and outcomes.

Comparisons of selected characteristics among 264 typhoid fever patients (i.e. excluding carriage and relapse isolates). For continuous variables age, time in hospital and fever clearance, values shown are means and test statistic given is the difference in means (Diff.; mean value for H58-E2 S. Typhi – mean value for non-H58-E2 S. Typhi). Other variables indicate frequency of symptoms self-reported at time of admission and of clinician-diagnosed hepatomegaly; test statistic is odds ratio (OR) for H58-E2 S. Typhi vs non-H58-E2 S. Typhi; both crude OR and adjusted OR are reported (adjusted for duration of fever prior to admission and use of antibiotics prior to admission, using logistic regression). All comparisons shown are for patients infected with H58-E2 S. Typhi vs those infected with other S. Typhi haplotypes (including H58-C and others); 95% confidence intervals (CI) are given in brackets.