Stratification of Chikungunya virus (CHIKV)-specific IgG titre levels according to explanatory variables in the TELECHIK study, La Réunion, 2007 to 2008. (CHIKV)-specific IgG titre levels are shown by gender in the two age groups (A), by age in according to gender (B), by severity of presentation in the two age groups (C), and by severity of presentation by age group and gender (D). Boxes represent medians and interquartile (Q1-Q3) ranges, whiskers represent minimal and maximal values. Optic density values were compared using Mann-Whitney tests: *P < 0.05; **P < 0.01; ***P < 0.001.
Gérardin et al. Arthritis Research & Therapy 2013 15:R9 doi:10.1186/ar4137