The present invention provides a system adapted to obtain an information related to eosinophilic airway inflammation. The system comprises a processor and a memory which is under control of said processor. The memory comprises software instructions adapted to enable the computer system to perform operations comprising: receiving an information related to an amount of at least one marker selected from the group consisting of CXCL9 and CCL27 in a blood sample of a subject； and obtaining an information related to eosinophilic airway inflammation in the subject based on the measured amount.
