To evaluate the role of white blood cell count, platelet count (PLT), mean platelet volume (MPV), and eosinophil percentage as objective markers of asthma control in pediatric patients.

The study included 348 patients between the ages of 4 and 18 years diagnosed with asthma from January 2011 through September 2015 at the University of Health Sciences in Ankara, Turkey. Within the cohort, 63.2% were male, and 43.1% had controlled asthma.

This was a retrospective and cross-sectional study in which subjects with asthma were separated into 2 groups: controlled and uncontrolled asthma (by using the Asthma Control Test). Subjects were further subdivided into groups on the basis of medication use (regular versus irregular) and atopic status (atopic versus nonatopic). The white blood cell count, PLT, MPV, eosinophil percentage, forced expiratory volume in 1 second (%), FVC (%), and forced expiratory volume in 1 second to FVC (%) were extracted from each...

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