TABLE 4.
Variable | Mean±sd | Median (IQR) | Range |
ACQ-7 | −0.17±0.55 | −0.14 (−0.42–0.0) | −2.0–3.0 |
FEV1 % pred | 0.7±3.9 | 0.9 (−1.8–3.2) | −11.1–11.5 |
Pre-bronchodilator FEV1 L | 0.02±0.15 | 0.03 (−0.07–0.12) | −0.5–0.5 |
FeNO ppb | −13.7±28.7 | −2.6 (−15.4–1.1) | −16.5–16.7 |
PEF variability# | −5.0±10.5 | −4.2(−9.0–1.0) | −48.5–24.1 |
SGRQ total | −5.6±9.9 | −4.7 (−9.3– −0.3) | −42.1–40.9 |
Change in variable is calculated as post-ICS value minus pre-ICS value. IQR: interquartile range; ACQ-7: seven point Asthma Control Questionnaire; FEV1: forced expiratory volume in 1 s; FeNO: exhaled nitric oxide fraction; PEF: peak expiratory flow; SGRQ: St George's Respiratory Questionnaire. #: n=123.