Rate ratio of first moderate to severe gastrointestinal symptoms (before day 63) within strata of characteristics in a randomized placebo-controlled double-blind clinical trial of T. suis for grass-pollen allergy, Denmark, 2008.

*The numbers of embryonated eggs, counted by quality-controlled microscopy, in randomly selected vials from bulk one to five were 2310, 2010, 2355, 2400, and 2400, respectively. Due to small numbers some bulk groups were joined.†Included birch-pollen induced allergic rhinitis (defined as subjects having birch-IgE≥0.7 kUA/l, birch-SPT≥3 mm, and reporting significant symptoms to birch-pollen in ≥1 of the last 4 years), food allergy, symptomatic cross-reactions to allergens, a diagnosis of asthma, or a diagnosis of atopic eczema.††Overweight/obese defined as BMI≥25. One subject was missing information on height.‡Subjects with any diarrhea, flatulence, pruritis ani, or other gastrointestinal disorder 3 weeks before trial (n = 43 of 96).