Table 3. Spearman’s correlation coefficients between serum periostin level and other clinical variables in children with asthma
Serum periostin (ng/ml) Serum periostin (ng/ml)
r p-value
Age, years Age, years -0.15 0.11
Disease duration, years Disease duration, years -0.06 0.56
Asthma severity Asthma severity 0.41 < 0.001
Asthma control status Asthma control status -0.01 0.92
Atopic dermatitis Atopic dermatitis 0.11 0.23
Allergic rhinitis Allergic rhinitis 0.04 0.70
BMI, z-score BMI, z-score -0.31 < 0.001
Total IgE (IU/mL) Total IgE (IU/mL) 0.03 0.78
Eosinophils, (%) Eosinophils, (%) -0.18 0.06
Eosinophils, (/ml) Eosinophils, (/ml) -0.18 0.05
FEV1, pred % FEV1, pred % 0.04 0.66
FEV1/FVC ratio FEV1/FVC ratio 0.10 0.26
FEF25-75, pred % FEF25-75, pred % 0.04 0.69
Abbreviations: BMI, body mass index; FEF25-75, forced expiratory flow between 25% and 75%; FEV1, forced expiratory volume during first second; FVC, forced vital capacity Abbreviations: BMI, body mass index; FEF25-75, forced expiratory flow between 25% and 75%; FEV1, forced expiratory volume during first second; FVC, forced vital capacity Abbreviations: BMI, body mass index; FEF25-75, forced expiratory flow between 25% and 75%; FEV1, forced expiratory volume during first second; FVC, forced vital capacity Abbreviations: BMI, body mass index; FEF25-75, forced expiratory flow between 25% and 75%; FEV1, forced expiratory volume during first second; FVC, forced vital capacity