Participant characteristics (n=174)
| Nonobese | Obese | p-value | |
| Participants | 88 | 86 | |
| Age years | 11.1±2.5 | 10.9±2.5 | 0.49 |
| Female sex | 30 (34) | 39 (45) | 0.13 |
| Black race | 74 (84) | 75 (87) | 0.56 |
| Asthma control | |||
| Maximum symptom day# | 4.3±4.4 | 5.2±4.9 | 0.20 |
| ATAQ score¶ | 2.2±1.9 | 2.8±2.0 | 0.08 |
| Asthma severity | 0.61 | ||
| Intermittent | 8 (9) | 4 (5) | |
| Mild persistent | 29 (33) | 26 (30) | |
| Moderate persistent | 37 (42) | 39 (45) | |
| Severe persistent | 14 (16) | 17 (20) | |
| Spirometry | |||
| FEV1 (% predicted) | 91±15 | 96±16 | 0.02 |
| FVC (% predicted) | 99±14 | 104±15 | 0.01 |
| FEV1/FVC | 0.81±0.09 | 0.81±0.08 | 0.94 |
| Tidal breathing measures | |||
| Tidal volume (mL) | 201±80 | 213±62 | 0.26 |
| Respiratory rate (breaths·min−1) | 17.8±3.4 | 18.9±4.1 | 0.06 |
| Minute ventilation (L·min−1) | 3.4±1.0 | 3.9±0.9 | <0.01 |
Data are presented as n, mean±sd or n (%), unless otherwise stated. ATAQ: Asthma Therapy Assessment Questionnaire; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity. #: 20/174 missing; ¶: 19/174 missing.