Figure 2.

Overall treatment response at the follow up visit (days 5–8). Distribution (%) of subjects by grading of global efficacy and treatment group in the radio-allergosorbent test positive intent to treat (RAST positive ITT) population for (A) subjects’ assessment and (B) investigators’ assessment. Based on logistic regression for ordinal data, the distribution of gradings was significantly in favour of ketotifen compared with placebo for each assessment (p = 0.005 for subject and p = 0.003 for investigator).