Seasonal variation in total and pollen‐specific immunoglobulin E levels in the European Community Respiratory Health Survey.

A, total IgE level, B, sIgE level to Timothy grass pollen and C, sIgE level to birch pollen. In conclusion, we examined the seasonality of sIgE level to grass and birch pollens and total IgE level in general adult populations using data from a cross-sectional multinational study. Previous work in populations found higher specific IgE levels in the relevant pollen season. A, sIgE level to Timothy grass pollen and B, sIgE level to birch pollen. [Extracted from the article]