Pearson's Chi-squared comparison of the percentage of participants producing detectable levels of GST-specific cytokines by gender, age group and <i>S. haematobium</i> infection status before anti-helminthic treatment.

Cytokines are categorised according to the cellular phenotype with which they are most commonly associated. Pearson's Chi-squared analysis: p-values<0.05 are indicated in bold and those significant after Bonferroni correction for multiple comparison are indicated by underlined text (correction conducted separately for each factor). *p<0.05, **p<0.01.