Characteristics of the pairs of visits included in the logistic regression and receiver operating characteristic (ROC) groups
| Logistic regression group | ROC group | p-value¶ | |
| Pairs of visits | 923 | 896 | |
| ICS dose μg BDPeq·day−1# | 882±688 | 860±701 | 0.391 |
| FENO ppb# | 26.5 (11.4–61.7) | 26.7 (10.8–66.3) | 0.862 |
| FEV1 % pred# | 78.2±19.3 | 78.7±19.6 | 0.427 |
| ACQ# | 1.8±1.5 | 1.9±1.5 | 0.174 |
| Improvement % | 37.7 | 39.7 | 0.374 |
| Worsening % | 24.1 | 23.5 | 0.801 |
| β=1 % | 41.9 | 43.1 | 0.619 |
Data are presented as n, mean±sd or geometric mean (geometric interval), unless otherwise stated. ICS: inhaled corticosteroid; BDPeq: beclomethasone dipropionate equivalent; FENO: exhaled nitric oxide fraction; FEV1: forced expiratory volume in 1 s; ACQ: Asthma Control Questionnaire. #: characteristics at the first visit of the pair; ¶: p-value evaluated by the unpaired t-test (on log-transformed values for FENO), except for percentages (Chi-squared test).