BAL = bronchoalveolar lavage; MEA = mild-moderate equine asthma; SEA = severe equine asthma. Age showed as mean and standard deviation.

Table 2: Bronchoalveolar lavage (BAL) cytology results for the included horses, and divided into groups based on cytological diagnosis, based on reference values for mild-moderate equine asthma >10% neutrophils, >5% mast cells or eosinophils, and SEA >25% neutrophils.