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Table 3 Response variables assessed at each visit (compared to a previous one- 6, 12 and 18 months after baseline). Response to treatment is defined into more detail in the supplementary file (Table S3). ppb- parts per billion

From: Treatment outcome clustering patterns correspond to discrete asthma phenotypes in children

  FEV1 MEF50 FENO Asthma control
Good Increase ≥ 10% predicted Increase ≥ 15% predicted Decrease < 20% for FENO values > 35 (50) ppb
or
increase < 10 ppb for FENO values < 35 (50) ppb
improvement in asthma control
Moderate  ± 9%
predicted
 ± 14%
predicted
 ≤ 20% FENO ≤ 20% for FENO values over 35 (50) ppb
or
 ± 10 ppb for FENO values < 35 (50) ppb
no changes in partial asthma control
Poor Decrease ≤ 
(-10%) predicted
Decrease
 ≤ (-15%) predicted
Increase > 20% for FENO values > 35 (50) ppb
or
increase > 10 ppb for FENO values < 35 (50) ppb
deterioration in asthma control